1-[(2-Chlorophenyl)(methylimino)methyl]cyclopentanol — Froehde reagent — White → Blue
White → Blue
Ketamine Precursor A
Source text (English): bright blue
Froehde reagent test results — all documented colour reactions
There are more substances than colors, so to increase analysis precision use a kit with multiple reagents. Exact color of a reaction depends on adulteration, quantity, lighting, temperature, exposure to air, storage, as well as reagent quality and degradation. Positive or negative result does not indicate if a substance is safe. No substance is 100% safe.
1-[(2-Chlorophenyl)(methylimino)methyl]cyclopentanol
1-(2,3,4-Trimethoxybenzyl)piperazine
1-(2,3,4-Trimethoxybenzyl)piperazine — Froehde reagent — White → Yellow
White → Yellow
1-(2,3,4-Trimethoxybenzyl) piperazine
Source text (English): light yellow
1-(2,5-Dimethoxybenzyl) piperazine
1-(2,5-Dimethoxybenzyl) piperazine — Froehde reagent — White → Yellow → Green
White → Yellow → Green
1-(2,5-Dimethoxybenzyl) piperazine
Source text (English): yellow > green
1,3-Indanedione
1,3-Indanedione — Froehde reagent — White → Brown
White → Brown
1,3-Indanedione
Source text (English): brown
1,4-Butanediol
1,4-Butanediol — Froehde reagent — No reaction
No reaction
1,4-Butanediol (BDO)
Source text (English): no color change
1,4-DMAA
1,4-DMAA — Froehde reagent — No reaction
No reaction
1,4-DMAA
Source text (English): no color change
1B-LSD
1B-LSD — Froehde reagent — White → Yellow → Green
White → Yellow → Green
1B-LSD
Source text (English): fain yellow/green
1cP-AL-LAD
1cP-AL-LAD — Froehde reagent — No reaction
No reaction
1cP-AL-LAD
Source text (English): no color change
1cP-LSD
1cP-LSD — Froehde reagent — No reaction
No reaction
1cP-LSD (curie)
Source text (English): no color change
1P-LSD
1P-LSD — Froehde reagent — No reaction
No reaction
1P-LSD
Source text (English): no color change
2-Aminoindan
2-Aminoindan — Froehde reagent — No reaction
No reaction
2-AI
Source text (English): no color change
2-bromo-3-methylpropiophenone
2-bromo-3-methylpropiophenone — Froehde reagent — White → Blue
White → Blue
2-br-3-methylpropiophenone (Precursor)
Source text (English): blue
2-Bromo-4,5-MDMA
2-Bromo-4,5-MDMA — Froehde reagent — White → Brown → Black
White → Brown → Black
2-bromo-4,5-MDMA
Source text (English): brown > black
2-Bromoamphetamine
2-Bromoamphetamine — Froehde reagent — No reaction
No reaction
2-BrA (2-Bromoamphetamine)
Source text (English): no color change
2-Bromomethamphetamine
2-Bromomethamphetamine — Froehde reagent — No reaction
No reaction
2-BrMA (2-Bromomethamphetamine)
Source text (English): no color change
2-FA
2-FA — Froehde reagent — No reaction
No reaction
2-FA (2-fluoroamphetamine, 2-fmp)
Source text (English): no color change
2-FDCK
2-FDCK — Froehde reagent — No reaction
No reaction
2-FDCK (2-fluoro-Deschloroketamine, 2-fluoro-2-oxo-PCM)
Source text (English): no color change
2-FEA
2-FEA — Froehde reagent — No reaction
No reaction
2-FEA (2-fluoroethylamphetamine)
Source text (English): no color change
2-FMA
2-FMA — Froehde reagent — No reaction
No reaction
2-FMA (2-Fluoro-Methamphetamine)
Source text (English): no color change
2-MAPB
2-MAPB — Froehde reagent — White → Black → Blue
White → Black → Blue
2-MAPB
Source text (English): dark blue
2-MeO-DMT
2-MeO-DMT — Froehde reagent — No reaction
No reaction
2-MeO-DMT
Source text (English): no color change
2-Methoxyamphetamine
2-Methoxyamphetamine — Froehde reagent — White → Green → Brown
White → Green → Brown
2-MeOA
Source text (English): green > brown
2-Methoxymethamphetamine
2-Methoxymethamphetamine — Froehde reagent — White → Green → Brown
White → Green → Brown
2-MeOMA
Source text (English): green > brown
2-MMC
2-MMC — Froehde reagent — No reaction
No reaction
2-MMC
Source text (English): no color change
2,3-DMMC
2,3-DMMC — Froehde reagent — No reaction
No reaction
2,3-DMMC
Source text (English): no color change
2,5-DMA
2,5-DMA — Froehde reagent — White → Yellow → Green
White → Yellow → Green
2,5-DMA (DMA)
Source text (English): yellow > light green
25B-NBOMe
25B-NBOMe — Froehde reagent — White → Yellow
White → Yellow
25B-NBOMe (25b)
Source text (English): yellow
25C-NB3OMe
25C-NB3OMe — Froehde reagent — White → Yellow → Green
White → Yellow → Green
25C-NB3OMe
Source text (English): yellow > green
25C-NBF
25C-NBF — Froehde reagent — White → Yellow → Green
White → Yellow → Green
25C-NBF
Source text (English): yellow > green (light)
25C-NBOH
25C-NBOH — Froehde reagent — White → Green → Yellow
White → Green → Yellow
25C-NBOH
Source text (English): green / yellow
25C-NBOMe
25C-NBOMe — Froehde reagent — White → Yellow
White → Yellow
25C-NBOMe (Cimbi-82, NBOMe-2C-C, 2C-C-NBOMe, 25c, 2c-nbome)
Source text (English): yellow
25D-NBOMe
25D-NBOMe — Froehde reagent — White → Yellow → Brown
White → Yellow → Brown
25D-NBOMe (2c-d-nbome, 25d)
Source text (English): yellow > brown
25E-NBOMe
25E-NBOMe — Froehde reagent — White → Green
White → Green
25E-NBOMe
Source text (English): green
25G-NBOMe
25G-NBOMe — Froehde reagent — White → Yellow → Brown
White → Yellow → Brown
25G-NBOMe
Source text (English): yellow > brown
25H-NBOMe
25H-NBOMe — Froehde reagent — White → Yellow → Green → Brown
White → Yellow → Green → Brown
25H-NBOMe
Source text (English): yellow > green
25I-NBF
25I-NBF — Froehde reagent — White → Orange → Black
White → Orange → Black
25I-NBF
Source text (English): orange > black
25I-NBMD
25I-NBMD — Froehde reagent — White → Brown → Black
White → Brown → Black
25I-NBMD
Source text (English): black
25I-NBOH
25I-NBOH — Froehde reagent — White → Brown
White → Brown
25I-NBOH (Cimbi-27, nboh-2ci)
Source text (English): brown
25I-NBOMe
25I-NBOMe — Froehde reagent — White → Yellow
White → Yellow
25I-NBOMe (25i, Cimbi-5, 2-c-i-nbome)
Source text (English): yellow
25I-NBOMe-metabolite
25I-NBOMe-metabolite — Froehde reagent — White → Brown → Green
White → Brown → Green
25I-NBOMe-metabolite
Source text (English): brown > dark brown
25iP-NBOMe
25iP-NBOMe — Froehde reagent — White → Yellow → Green
White → Yellow → Green
25IP-NBOMe
Source text (English): yellow > green
25N-NBOMe
25N-NBOMe — Froehde reagent — White → Brown → Black
White → Brown → Black
25N-NBOMe (2-c-n-nbome, 25n)
Source text (English): brown > black
25T-NBOMe
25T-NBOMe — Froehde reagent — White → Orange → Purple
White → Orange → Purple
25T-NBOMe
Source text (English): orange > slow violet
2C-B
2C-B — Froehde reagent — White → Yellow → Green
White → Yellow → Green
2C-B (Nexus, Bees)
Source text (English): yellow > green
2C-B-FLY
2C-B-FLY — Froehde reagent — White → Yellow → Green
White → Yellow → Green
2C-B-fly
Source text (English): yellow / green
2C-BZ
2C-BZ — Froehde reagent — White → Green
White → Green
2C-BZ
Source text (English): green
2C-C
2C-C — Froehde reagent — White → Yellow → Green
White → Yellow → Green
2C-C
Source text (English): yellow > green (slow)
2C-D
2C-D — Froehde reagent — White → Yellow → Green
White → Yellow → Green
2C-D (2C-M, LE-25, 2cm)
Source text (English): yellow > green
2C-E
2C-E — Froehde reagent — White → Yellow
White → Yellow
2C-E (Eternity)
Source text (English): yellow
2C-H
2C-H — Froehde reagent — White → Green
White → Green
2C-H (DMPEA)
Source text (English): green
2C-I
2C-I — Froehde reagent — White → Orange → Brown → Black
White → Orange → Brown → Black
2C-I
Source text (English): Orange -> Black
2C-IP
2C-IP — Froehde reagent — White → Yellow → Green
White → Yellow → Green
2C-IP
Source text (English): light green (slow)
2C-P
2C-P — Froehde reagent — White → Green
White → Green
2C-P
Source text (English): green
2C-P-NBOMe
2C-P-NBOMe — Froehde reagent — White → Green → Yellow
White → Green → Yellow
2C-P-NBOMe
Source text (English): green > yellow
2C-T-2
2C-T-2 — Froehde reagent — White → Orange → Purple
White → Orange → Purple
2C-T-2 (Rosy)
Source text (English): orange > purple
2C-T-2-NBOMe
2C-T-2-NBOMe — Froehde reagent — White → Orange → Purple
White → Orange → Purple
2C-T-2-NBOMe
Source text (English): orange > purple
2C-T-4
2C-T-4 — Froehde reagent — White → Orange → Red
White → Orange → Red
2C-T-4
Source text (English): orange > red
2C-T-4-NBOMe
2C-T-4-NBOMe — Froehde reagent — White → Red
White → Red
2C-T-4-NBOMe
Source text (English): red > dark red
2C-T-7
2C-T-7 — Froehde reagent — White → Purple
White → Purple
2C-T-7 (Beautiful, Blue Mystic, 7th Heaven)
Source text (English): violet > orange
2C-T-7-NBOMe
2C-T-7-NBOMe — Froehde reagent — White → Orange → Purple
White → Orange → Purple
2C-T-7-NBOMe
Source text (English): orange > purple (slow)
2C-TFM
2C-TFM — Froehde reagent — White → Green → Yellow → Brown
White → Green → Yellow → Brown
2C-TFM
Source text (English): green - yellow - brown
2F-NENDCK
2F-NENDCK — Froehde reagent — No reaction
No reaction
2-Fluoro-2-Oxo-PCE (canket, 2F-NENDCK, 2F-O-PCE)
Source text (English): no color change
3-Bromoamphetamine
3-Bromoamphetamine — Froehde reagent — No reaction
No reaction
3-Bromoamphetamine
Source text (English): no color change
3-Bromomethamphetamine
3-Bromomethamphetamine — Froehde reagent — No reaction
No reaction
3-Bromomethamphetamine
Source text (English): no color change
3-CAF
3-CAF — Froehde reagent — White → Yellow → Brown
White → Yellow → Brown
3-CAF
Source text (English): brown (light)
3-CMC
3-CMC — Froehde reagent — No reaction
No reaction
3-CMC (3-Chloromethcathinone, Clophedrone)
Source text (English): no color change
3-FA
3-FA — Froehde reagent — No reaction
No reaction
3-FA (3-Fluoroamphetamine, PAL-353)
Source text (English): no color change
3-FEA
3-FEA — Froehde reagent — No reaction
No reaction
3-FEA
Source text (English): no color change
3-FMA
3-FMA — Froehde reagent — No reaction
No reaction
3-FMA
Source text (English): no color change
3-FMC
3-FMC — Froehde reagent — No reaction
No reaction
3-FMC (3-Fluoromethcathinone)
Source text (English): no color change
3-FPM
3-FPM — Froehde reagent — No reaction
No reaction
3-FPM (PAL-593, 3-fph, 3f-phenmetrazine, pal-593)
Source text (English): no color change
3-HO-PCE
3-HO-PCE — Froehde reagent — White → Black
White → Black
3-HO-PCE (Hydroxyeticyclidine)
Source text (English): black
3-MEC
3-MEC — Froehde reagent — White → Green
White → Green
3-MEC
Source text (English): greenish
3-MeO-PCE
3-MeO-PCE — Froehde reagent — No reaction
No reaction
3-MeO-PCE (Methoxyeticyclidine)
Source text (English): no color change
3-MeO-PCMMo
3-MeO-PCMMo — Froehde reagent — White → Brown
White → Brown
3-MeO-PCMMo
Source text (English): brown
3-MeO-PCMo
3-MeO-PCMo — Froehde reagent — No reaction
No reaction
3-MeO-PCMo
Source text (English): no color change
3-MeO-PCP
3-MeO-PCP — Froehde reagent — No reaction
No reaction
3-MeO-PCP (3-MeO)
Source text (English): no color change
3-Methoxyamphetamine
3-Methoxyamphetamine — Froehde reagent — White → Green
White → Green
3-MA (3-Methoxyamphetamine)
Source text (English): green
3-Methylphenmetrazine
3-Methylphenmetrazine — Froehde reagent — No reaction
No reaction
3-MPM (3-Methylphenmetrazine)
Source text (English): no color change
3-MMA
3-MMA — Froehde reagent — No reaction
No reaction
3-MMA (3-methyl-methamphetamine)
Source text (English): no color change
3-MMC
3-MMC — Froehde reagent — No reaction
No reaction
3-MMC (Metaphedrone, 3-methylmethcathinone, 3-meph, 3-mephedrone)
Source text (English): no color change
3-OH-Phenazepam
3-OH-Phenazepam — Froehde reagent — White → Yellow
White → Yellow
3-Hydroxyphenazepam
Source text (English): yellow
30C-NBOMe
30C-NBOMe — Froehde reagent — White → Green → Yellow
White → Green → Yellow
30C-NBOMe
Source text (English): gree - yellow
3,4-CFPP
3,4-CFPP — Froehde reagent — No reaction
No reaction
3,4-CFPP (Kleferein)
Source text (English): no color change
3,4-CTMP
3,4-CTMP — Froehde reagent — No reaction
No reaction
3,4-CTMP
Source text (English): no color change
3,4-Dimethylamphetamine
3,4-Dimethylamphetamine — Froehde reagent — White → Green
White → Green
3,4-Dimethylamphetamine
Source text (English): light green
3,4-DMMC
3,4-DMMC — Froehde reagent — White → Yellow → Orange → Brown
White → Yellow → Orange → Brown
3,4-DMMC
Source text (English): light orange/brown
3,4-MDPV
3,4-MDPV — Froehde reagent — White → Yellow → Green
White → Yellow → Green
3,4-dimethoxy-α-PHP
Source text (English): yellow > green
3,4-methylenedioxy-N-propylcathinone
3,4-methylenedioxy-N-propylcathinone — Froehde reagent — White → Yellow → Green
White → Yellow → Green
3,4-methylenedioxy-N-propylcathinone (Propylone)
Source text (English): yellow > green
3,4-Trimethylenepentedrone
3,4-Trimethylenepentedrone — Froehde reagent — White → Yellow
White → Yellow
3,4-Trimethylenepentedrone
Source text (English): light yellow
3,5-Dimethylamphetamine
3,5-Dimethylamphetamine — Froehde reagent — No reaction
No reaction
3,5-Dimethylamphetamine
Source text (English): no color change
3570CT
3570CT — Froehde reagent — White → Yellow
White → Yellow
3570CT
Source text (English): yellow
3,6-DMPM
3,6-DMPM — Froehde reagent — No reaction
No reaction
3,6-DMPM
Source text (English): no color change
3633CT
3633CT — Froehde reagent — White → Yellow
White → Yellow
3633CT
Source text (English): yellow
3638CT
3638CT — Froehde reagent — White → Yellow
White → Yellow
3638CT
Source text (English): yellow
3639CT
3639CT — Froehde reagent — White → Yellow
White → Yellow
3639CT
Source text (English): yellow
4-AcO-DALT
4-AcO-DALT — Froehde reagent — White → Yellow → Green
White → Yellow → Green
4-AcO-DALT
Source text (English): yellow > green
4-AcO-DET
4-AcO-DET — Froehde reagent — White → Yellow → Green
White → Yellow → Green
4-AcO-DET (4-Acetoxy-DET, Ethacetin, ethylacybin)
Source text (English): yellow > green
4-AcO-DMT
4-AcO-DMT — Froehde reagent — White → Brown → Black
White → Brown → Black
4-AcO-DMT (4-Acetoxy-DMT, Psilacetin, O-Acetylpsilocin, Synthetic mushrooms)
Source text (English): green > black
4-AcO-MET
4-AcO-MET — Froehde reagent — White → Green
White → Green
4-AcO-MET (4-Acetoxy-MET, Metacetin, O-Acetylmetocin)
Source text (English): green
4-BA
4-BA — Froehde reagent — No reaction
No reaction
4-BA (4-Bromoamphetamine)
Source text (English): no color change
4-BMC
4-BMC — Froehde reagent — No reaction
No reaction
4-BMC
Source text (English): no color change
4-BrPP
4-BrPP — Froehde reagent — No reaction
No reaction
4-BrPP (4-BP)
Source text (English): no color change
4-CBC
4-CBC — Froehde reagent — No reaction
No reaction
4-CBC
Source text (English): no color change
4-CDC
4-CDC — Froehde reagent — No reaction
No reaction
4-CDC
Source text (English): no color change
4-CEC
4-CEC — Froehde reagent — No reaction
No reaction
4-CEC (4-Chloroethcathinone)
Source text (English): no color change
4-chloro-2,5-DMA
4-chloro-2,5-DMA — Froehde reagent — White → Yellow → Green
White → Yellow → Green
4-chloro-2,5-DMA
Source text (English): yellow > green
4-Chlorodiazepam
4-Chlorodiazepam — Froehde reagent — No reaction
No reaction
Ro5-4864 (4'-chlorodiazepam)
Source text (English): no color change
4-Chloromethamphetamine
4-Chloromethamphetamine — Froehde reagent — No reaction
No reaction
4-Chloromethamphetamine
Source text (English): no color change
4-CIC
4-CIC — Froehde reagent — No reaction
No reaction
4-CIC
Source text (English): no color change
4-Cl-PPP
4-Cl-PPP — Froehde reagent — No reaction
No reaction
4-Cl-PPP
Source text (English): no color change
4-CMC
4-CMC — Froehde reagent — No reaction
No reaction
4-CMC (4-Chloromethcathinone, Clephedrone)
Source text (English): no color change
4-EEC
4-EEC — Froehde reagent — No reaction
No reaction
4-EEC (4-Ethylethcathinone)
Source text (English): no color change
4-EMC
4-EMC — Froehde reagent — No reaction
No reaction
4-EMC (4-Ethylmethcathinone)
Source text (English): no color change
4-ethylephedrine
4-ethylephedrine — Froehde reagent — White → Green
White → Green
4-ethylephedrine
Source text (English): green
4-FA
4-FA — Froehde reagent — No reaction
No reaction
4-FA (4-FMP, PAL-303, Flux, 4-Fluoroamphetamine).
Source text (English): no color change
4-FEA
4-FEA — Froehde reagent — White → Brown
White → Brown
4-Fluoroethamphetamine (4-FEA)
Source text (English): light brown
4-Fluorobutyrfentanyl
4-FBF — Froehde reagent — No reaction
No reaction
4-FBF
Source text (English): no color change
4F-BF — Froehde reagent — No reaction
No reaction
4F-BF
Source text (English): no color change
4-Fluorococaine
4-Fluorococaine — Froehde reagent — No reaction
No reaction
4-Fluorococaine
Source text (English): no color change
4-Fluoroethylphenidate
4-Fluoroethylphenidate — Froehde reagent — No reaction
No reaction
4F-EPH
Source text (English): no color change
4-Fluoromethylphenidate
4-Fluoromethylphenidate — Froehde reagent — No reaction
No reaction
4F-MPH
Source text (English): no color change
4-Fluoropentedrone
4-Fluoropentedrone — Froehde reagent — No reaction
No reaction
4-FPD (4-f-pentedrone, 4f-pentedrone)
Source text (English): no color change
4-FMC
4-FMC — Froehde reagent — No reaction
No reaction
4-FMC (Flephedrone)
Source text (English): no color change
4-HO-DET
4-HO-DET — Froehde reagent — White → Green
White → Green
4-HO-DET (Ethocin, CZ-74, 4-hydroxy-det)
Source text (English): green
4-HO-DiPT
4-HO-DiPT — Froehde reagent — White → Brown
White → Brown
4-HO-DIPT (Iprocin)
Source text (English): brown
4-HO-EPT
4-HO-EPT — Froehde reagent — White → Yellow → Green
White → Yellow → Green
4-HO-EPT (Eprocin)
Source text (English): green
4-HO-MET
4-HO-MET — Froehde reagent — White → Yellow → Green
White → Yellow → Green
4-HO-MET (Metocin, Methylcybin, Colour)
Source text (English): yellow > green
4-HO-MiPT
4-HO-MiPT — Froehde reagent — White → Yellow → Green
White → Yellow → Green
4-HO-MIPT (Miprocin, ho-mipt, 4-ho)
Source text (English): yellow > green
4-Hydroxymethcathinone
4-Hydroxymethcathinone — Froehde reagent — White → Brown
White → Brown
4-HO-MEC (4-Hydroxymethcathinone)
Source text (English): brownish
4-MDMC
4-MDMC — Froehde reagent — No reaction
No reaction
4-MDMC
Source text (English): no color change
4-MEAP
4-MEAP — Froehde reagent — No reaction
No reaction
4-MEAP
Source text (English): no color change
4-MEC
4-MEC — Froehde reagent — No reaction
No reaction
4-MEC (4-Methylethcathinone)
Source text (English): no color change
4-MeO-Butyrfentanyl
4-MeO-Butyrfentanyl — Froehde reagent — No reaction
No reaction
4-MeO-BF
Source text (English): no color change
4-MeO-PCP
4-MeO-PCP — Froehde reagent — White → Brown
White → Brown
4-MeO-PCP (Methoxydine)
Source text (English): brownish
4-MeO-PV9
4-MeO-PV9 — Froehde reagent — White → Green
White → Green
4-MeO-PV9
Source text (English): greenish
4-MeO-PVP
4-MeO-PVP — Froehde reagent — White → Green → Brown
White → Green → Brown
4-MeO-PVP
Source text (English): olive
4-methyl-N-ethyl-norephedrine
4-methyl-N-ethyl-norephedrine — Froehde reagent — No reaction
No reaction
4-MEC metabolite (4-methyl-N-ethyl-norephedrine)
Source text (English): no color change
4-Methylbuphedrone
4-Methylbuphedrone — Froehde reagent — No reaction
No reaction
4-MeMAPB (4-Methylbuphedrone)
Source text (English): no color change
4-Methylephedrine
4-Methylephedrine — Froehde reagent — No reaction
No reaction
4-Methylephedrine (4-MMC metabolite)
Source text (English): no color change
4-Methylmethylphenidate
4-Methylmethylphenidate — Froehde reagent — No reaction
No reaction
4-Me-TMP
Source text (English): no color change
4-Methylpropiophenone
4-Methylpropiophenone — Froehde reagent — No reaction
No reaction
4-Methylpropiophenone
Source text (English): no color change
4-MPD
4-MPD — Froehde reagent — No reaction
No reaction
4-MPD (4-Methylpentedrone)
Source text (English): no color change (foaming)
4-MPH
4-MPH (Mephenmetrazine) — Froehde reagent — No reaction
No reaction
4-MPH (Mephenmetrazine)
Source text (English): no color change
Mephenmetrazine — Froehde reagent — No reaction
No reaction
Mephenmetrazine
Source text (English): no color change
4-MPM
4-MPM — Froehde reagent — White → Purple
White → Purple
4-MPM (4-methylphenmetrazine)
Source text (English): slow purple
4C-MAR
4C-MAR — Froehde reagent — No reaction
No reaction
4C-MAR
Source text (English): no color change
4Cl-iBF
4Cl-iBF — Froehde reagent — No reaction
No reaction
4Cl-iBF (p-Chloro-isobutyrylfentanyl)
Source text (English): no color change
4Cl-PVP
4Cl-PVP — Froehde reagent — White → Brown
White → Brown
4Cl-PVP
Source text (English): brownish
4F-4-MAR
4F-4-MAR — Froehde reagent — No reaction
No reaction
4-F-4-MAR
Source text (English): no color change
4F-iBF
4F-iBF — Froehde reagent — No reaction
No reaction
4F-iBF
Source text (English): no color change
4F-MABP
4F-MABP — Froehde reagent — White → Yellow
White → Yellow
4F-MABP (4-fluorobuphedrone)
Source text (English): yellowish
4F-NPP
4F-NPP — Froehde reagent — No reaction
No reaction
4F-NPP
Source text (English): no color change
4F-PHP
4F-PHP — Froehde reagent — No reaction
No reaction
4F-PHP
Source text (English): no color change
4F-PV8
4F-PV8 — Froehde reagent — No reaction
No reaction
4F-PV8
Source text (English): no color change
4F-PV9
4F-PV9 — Froehde reagent — No reaction
No reaction
4F-PV9
Source text (English): no color change
4F-PVP
4F-PVP — Froehde reagent — No reaction
No reaction
4F-aPVP (pfpvp)
Source text (English): no color change
5-AEDB
5-AEDB — Froehde reagent — White → Purple
White → Purple
5-AEDB
Source text (English): purple
5-APB
5-APB — Froehde reagent — White → Purple
White → Purple
5-APB
Source text (English): purple
5-APB HCl — Froehde reagent — White → Purple → Black
White → Purple → Black
5-APB HCl
Source text (English): purple > black
5-APB succinate — Froehde reagent — White → Purple → Black
White → Purple → Black
5-APB succinate
Source text (English): purple > black
5-APB-NBOME
5-APB-NBOME — Froehde reagent — White → Purple
White → Purple
5-APB NBOME
Source text (English): violet
5-APDB
5-APDB — Froehde reagent — White → Green → Purple
White → Green → Purple
5-APDB
Source text (English): faint green > purple
5-BPDI
5-BPDI — Froehde reagent — White → Green
White → Green
5-BPDi
Source text (English): light green
5-Bromo-DMT
5-Bromo-DMT — Froehde reagent — No reaction
No reaction
5-Br-DMT
Source text (English): no color change
5-Cl-DMT
5-Cl-DMT — Froehde reagent — No reaction
No reaction
5-Cl-DMT
Source text (English): no color change
5-DBFPV
5-DBFPV — Froehde reagent — White → Black
White → Black
5-DBFPV
Source text (English): black
5-EAPB
5-EAPB — Froehde reagent — White → Purple
White → Purple
5-EAPB
Source text (English): dark violet
5-fluoro-SDB-005
5-fluoro-SDB-005 — Froehde reagent — White → Yellow
White → Yellow
5-fluoro-SDB-005
5-Fluoropentyl-3-pyridinoylindole
5-Fluoropentyl-3-pyridinoylindole — Froehde reagent — White → Yellow
White → Yellow
5-Fluoropentyl-3-pyridinoylindole
Source text (English): yellow
5-IAI
5-IAI — Froehde reagent — White → Green
White → Green
5-IAI
Source text (English): light green
5-IT
5-IT — Froehde reagent — White → Red → Brown
White → Red → Brown
5-IT
Source text (English): red brown
5-MAPB
5-MAPB — Froehde reagent — White → Purple
White → Purple
5-MAPB
Source text (English): violet
5-MAPDB
5-MAPDB — Froehde reagent — White → Purple
White → Purple
5-MAPDB
Source text (English): violet
5-MAPDI
5-MAPDI — Froehde reagent — White → Orange
White → Orange
5-MAPDI
Source text (English): orange
5-MBPB
5-MBPB — Froehde reagent — White → Blue
White → Blue
5-MBPB
Source text (English): blue
5-Meo-Amt
5-Meo-Amt — Froehde reagent — White → Yellow → Brown
White → Yellow → Brown
5-MeO-AMT
Source text (English): yellow >brown
5-MeO-DALT
5-MeO-DALT — Froehde reagent — White → Yellow
White → Yellow
5-MeO-DALT (Foxtrot)
Source text (English): yellow
5-MeO-DiBF
5-MeO-DiBF — Froehde reagent — White → Brown
White → Brown
5-MeO-DiBF
Source text (English): brown
5-MeO-DMT
5-MeO-DMT freebase (The God Molecule, Toad, Jaguar, toads, 5-medmt) — Froehde reagent — White → Yellow
White → Yellow
5-MeO-DMT freebase (The God Molecule, Toad, Jaguar, toads, 5-medmt)
Source text (English): faint yellow
5-MeO-DMT HCl (The God Molecule, Toad, Jaguar, toads, 5-medmt) — Froehde reagent — White → Yellow
White → Yellow
5-MeO-DMT HCl (The God Molecule, Toad, Jaguar, toads, 5-medmt)
Source text (English): faint yellow
5-Methyl-MDA
5-Methyl-MDA — Froehde reagent — White → Green → Black
White → Green → Black
5-Me-MDA
Source text (English): greenish black
5-Methylethylone
5-Methylethylone — Froehde reagent — White → Brown
White → Brown
5ME
Source text (English): brown
5-MMPA
5-MMPA — Froehde reagent — White → Brown
White → Brown
5-MMPA (Mephedrene)
Source text (English): light brown
5-PPDI
5-PPDI — Froehde reagent — White → Green
White → Green
5-PPDi
Source text (English): light green
5C-AKB48
5C-AKB48 — Froehde reagent — No reaction
No reaction
5C-AKB48
Source text (English): no color change
5F-ADB-PINACA
5F-ADB-PINACA — Froehde reagent — No reaction
No reaction
5F-ADB-PINACA
Source text (English): no color change
5F-ADBICA
5F-ADBICA — Froehde reagent — White → Yellow
White → Yellow
5F-ADBICA
Source text (English): yellowish
5F-AMB
5F-AMB — Froehde reagent — No reaction
No reaction
5F-AMB
Source text (English): no color change
5F-AMBICA
5F-AMBICA — Froehde reagent — White → Yellow
White → Yellow
5F-AMBICA
Source text (English): yellowish
5F-APP-PICA
5F-APP-PICA — Froehde reagent — White → Green
White → Green
5F-APP-PICA(PX1)
Source text (English): light green
5F-EMB-PINACA
5F-EMB-PINACA — Froehde reagent — No reaction
No reaction
5F-EMB-PINACA
Source text (English): no color change
5F-MDMB-PINACA
5F-MDMB-PINACA — Froehde reagent — No reaction
No reaction
5F-MDMB-PINACA
Source text (English): no color change
5F-MN-18
5F-MN-18 — Froehde reagent — White → Orange
White → Orange
5F-MN-18
Source text (English): orange
5F-PB-22
5F-PB-22 — Froehde reagent — White → Brown
White → Brown
5F-PB-22
Source text (English): light brown
5F-PY-PICA
5F-PY-PICA — Froehde reagent — White → Yellow → Green → Blue
White → Yellow → Green → Blue
5F-PY-PICA
Source text (English): olive > olive blue
5F-PY-PINACA
5F-PY-PINACA — Froehde reagent — No reaction
No reaction
5F-PY-PINACA
Source text (English): no color change
6-APB
6-APB (Benzofury) — Froehde reagent — White → Purple
White → Purple
6-APB (Benzofury)
Source text (English): purple
6-APB succinate (Benzofury) — Froehde reagent — White → Purple
White → Purple
6-APB succinate (Benzofury)
Source text (English): purple
6-APDB
6-APDB — Froehde reagent — White → Orange → Purple
White → Orange → Purple
6-APDB (4-desoxy-mda)
Source text (English): orange > purple
6-EAPB
6-EAPB — Froehde reagent — White → Purple → Black
White → Purple → Black
6-EAPB
Source text (English): Dark wine
6-IT
6-IT — Froehde reagent — White → Yellow → Brown
White → Yellow → Brown
6-IT
Source text (English): yellowish brown
A-834,735
A-834,735 — Froehde reagent — White → Brown
White → Brown
A-834,735
Source text (English): brown
a-PBP
a-PBP — Froehde reagent — White → Yellow → Green
White → Yellow → Green
a-PBP (alpha-pbp)
Source text (English): yellow > green
a-PHP
a-PHP — Froehde reagent — White → Yellow
White → Yellow
a-PHP
Source text (English): faint yellow
A-PIHP
A-PIHP — Froehde reagent — No reaction
No reaction
a-PIHP
Source text (English): no color change
A-PVP
A-PVP — Froehde reagent — White → Yellow
White → Yellow
a-PVP
Source text (English): faint yellow
a-PVT
a-PVT — Froehde reagent — White → Brown
White → Brown
a-PVT
Source text (English): faint brown
AB-001
AB-001 — Froehde reagent — White → Brown
White → Brown
AB-001
Source text (English): faint brown
AB-CHFUPYCA
AB-CHFUPYCA — Froehde reagent — No reaction
No reaction
AB-CHFUPYCA
Source text (English): no color change
AB-CHMINACA
AB-CHMINACA — Froehde reagent — No reaction
No reaction
AB-CHMINACA
Source text (English): no color change
AB-FUBINACA
AB-FUBINACA — Froehde reagent — No reaction
No reaction
AB-FUBINACA
Source text (English): no color change
AB-FUBINACA 2-fluorobenzyl isomer
AB-FUBINACA 2-fluorobenzyl isomer — Froehde reagent — No reaction
No reaction
AB-FUBINACA 2-fluorobenzyl isomer
Source text (English): no color change
Acethyl-dihydro-codeine
Acethyl-dihydro-codeine — Froehde reagent — No reaction
No reaction
Acethyl-dihydro-codeine
Source text (English): no color change
Acetildenafil
Acetildenafil — Froehde reagent — No reaction
No reaction
Acetildenafil
Source text (English): no color change
Acetylamphetamine
Acetylamphetamine — Froehde reagent — No reaction
No reaction
Acetylamphetamine
Source text (English): no color change
Acryloyl-F
Acryloyl-F — Froehde reagent — White → Brown
White → Brown
Acryloyl-F
Source text (English): light brown
ADAMANTYL-THPINACA
ADAMANTYL-THPINACA — Froehde reagent — No reaction
No reaction
ADAMANTYL-THPINACA
Source text (English): no color change
ADB-5Br-INACA
ADB-5Br-INACA — Froehde reagent — No reaction
No reaction
ADB-5Br-INACA
Source text (English): no color change
ADB-CHMICA
ADB-CHMICA — Froehde reagent — White → Green
White → Green
ADB-CHMICA
Source text (English): light green
ADB-CHMINACA
ADB-CHMINACA — Froehde reagent — No reaction
No reaction
ADB-CHMINACA
Source text (English): no color change
ADB-FUBINACA
ADB-FUBINACA — Froehde reagent — No reaction
No reaction
ADB-FUBINACA
Source text (English): no color change
ADB-PINACA isomer 1
ADB-PINACA isomer 1 — Froehde reagent — No reaction
No reaction
ADB-PINACA isomer 1
Source text (English): no color change
ADB-PINACA isomer 2
ADB-PINACA isomer 2 — Froehde reagent — No reaction
No reaction
ADB-PINACA isomer 2
Source text (English): no color change
ADBICA
ADBICA — Froehde reagent — White → Brown
White → Brown
ADBICA
Source text (English): brownish
Adinazolam
Adinazolam — Froehde reagent — No reaction
No reaction
Adinazolam
Source text (English): no color change
Adrafinil
Adrafinil — Froehde reagent — White → Orange → Red → Brown
White → Orange → Red → Brown
Adrafinil (Olmifon)
Source text (English): orange/red > brown
AH-7921
AH-7921 — Froehde reagent — No reaction
No reaction
AH-7921
Source text (English): no color change
AKB-48
AKB-48 — Froehde reagent — White → Brown
White → Brown
AKB-48
Source text (English): brown
AKB-57
AKB-57 — Froehde reagent — No reaction
No reaction
AKB-57
Source text (English): no color change
AL-LAD
AL-LAD — Froehde reagent — No reaction
No reaction
AL-LAD (Aladdin)
Source text (English): no color change
ALD-52
ALD-52 — Froehde reagent — No reaction
No reaction
ALD-52 (1-Acetyl-LSD, 1A-LSD, 1A-LAD, Orange Sunshine)
Source text (English): no color change
Alimemazine
Alimemazine — Froehde reagent — White → Purple
White → Purple
Alimemazine
Source text (English): purple red
Allylescaline
Allylescaline — Froehde reagent — White → Brown → Black
White → Brown → Black
Allylescaline (AL)
Source text (English): green - blue > black
Alpha-acetyl-methadol
Alpha-acetyl-methadol — Froehde reagent — White → Black → Green
White → Black → Green
Alpha-acetyl-methadol
Source text (English): grey-green
Alpha-meprodine
Alpha-meprodine — Froehde reagent — White → Blue → Black
White → Blue → Black
Alpha-meprodine
Source text (English): blue-grey
Alphamethadol
Alphamethadol — Froehde reagent — White → Black → Green
White → Black → Green
Alphamethadol
Source text (English): grey-green
Alphaprodine
Alphaprodine — Froehde reagent — White → Blue → Black
White → Blue → Black
Alphaprodine
Source text (English): blue-grey
AM-2201 4-methoxynaphthyl analogue
AM-2201 4-methoxynaphthyl analogue — Froehde reagent — White → Yellow → Brown
White → Yellow → Brown
AM-2201 4-methoxynaphthyl analogue
Source text (English): yellow > brown
AM-2233
AM-2233 — Froehde reagent — White → Yellow
White → Yellow
AM-2233
AMB
AMB — Froehde reagent — No reaction
No reaction
AMB
Source text (English): no color change
AMB-CHMICA
AMB-CHMICA — Froehde reagent — No reaction
No reaction
AMB-CHMICA
Source text (English): no color change or light green
AMB-FUBICA
AMB-FUBICA — Froehde reagent — White → Brown
White → Brown
AMB-FUBICA
Source text (English): brownish
Amfonelic acid
Amfonelic acid — Froehde reagent — No reaction
No reaction
WIN 25,978/AFA
Source text (English): no color change
Amphetamine
Amphetamine — Froehde reagent — No reaction
No reaction
Amphetamine (Racemic) (Speed, Paste, Amfetamine)
Source text (English): clear or red
aMT
aMT — Froehde reagent — White → Yellow
White → Yellow
aMT (αMT, Indopan)
Source text (English): faint yellow
Anileridine
Anileridine — Froehde reagent — No reaction
No reaction
Anileridine
Source text (English): no color change
APP-CHMINACA
APP-CHMINACA — Froehde reagent — White → Yellow
White → Yellow
APP-CHMINACA (PX3)
Source text (English): light yellow
Aspirin
Aspirin — Froehde reagent — White → Blue → Purple
White → Blue → Purple
Aspirin
Source text (English): blue > purple
b-methoxy-2C-D
b-methoxy-2C-D — Froehde reagent — White → Red
White → Red
b-methoxy-2C-D
Source text (English): red
Baclofen
Baclofen — Froehde reagent — No reaction
No reaction
Baclofen (Lioresal, Gablofen)
Source text (English): no color change
Baking soda
Baking soda — Froehde reagent — No reaction
No reaction
Baking soda
Source text (English): no color change
BB-22
BB-22 — Froehde reagent — White → Brown
White → Brown
BB-22
Source text (English): light brown
Bentazepam
Bentazepam — Froehde reagent — White → Yellow
White → Yellow
Bentazepam
Source text (English): yellow
Benzocaine
Benzocaine — Froehde reagent — No reaction
No reaction
Benzocaine
Source text (English): no color change
Benzphetamine
Benzphetamine — Froehde reagent — White → Yellow → Orange
White → Yellow → Orange
Benzphetamine
Source text (English): yellow > orange
Beta-meprodine
Beta-meprodine — Froehde reagent — White → Blue → Black
White → Blue → Black
Beta-meprodine
Source text (English): blue-grey
Betaprodine
Betaprodine — Froehde reagent — White → Blue → Black
White → Blue → Black
Betaprodine
Source text (English): blue-grey
bH-2C-B
bH-2C-B — Froehde reagent — White → Brown
White → Brown
BOH-2C-B
Source text (English): brown
bk-2C-B
bk-2C-B — Froehde reagent — White → Orange
White → Orange
bk-2C-B
Source text (English): orange
bk-Ethyl-K
bk-Ethyl-K — Froehde reagent — White → Yellow → Green → Brown
White → Yellow → Green → Brown
bk-Ethyl-K
Source text (English): yellow > green > brown
bk-IBP
bk-IBP — Froehde reagent — White → Brown
White → Brown
bk-IBP (NEB indene analog)
Source text (English): light brown
bk-IVP
bk-IVP — Froehde reagent — White → Brown
White → Brown
bk-IVP
Source text (English): brownish
bk-MDA
bk-MDA — Froehde reagent — White → Yellow → Green
White → Yellow → Green
bk-MDA
Source text (English): yellow > green
Bromoketamine
Bromoketamine — Froehde reagent — No reaction
No reaction
Bromoketamine
Source text (English): no color change
Bromomethamphetamine
Bromomethamphetamine — Froehde reagent — No reaction
No reaction
4-BMA (Bromomethamphetamine)
Source text (English): no color change
Bromonordiazepam
Bromonordiazepam — Froehde reagent — No reaction
No reaction
Bromonordiazepam
Source text (English): no color change
Buphedrone
Buphedrone — Froehde reagent — No reaction
No reaction
MAPB (Buphedrone)
Source text (English): no color change
Buprenorphine
Buprenorphine — Froehde reagent — White → Purple
White → Purple
Buprenorphine
Source text (English): slow purple
Butylone
Butylone — Froehde reagent — White → Yellow → Green → Brown
White → Yellow → Green → Brown
Butylone (bk-MBDB, B1, bk-mbdb, bk-methyl-j)
Source text (English): yellow > green > olive
BZP
BZP — Froehde reagent — No reaction
No reaction
BZP
Source text (English): no color change
C-MDA
C-MDA — Froehde reagent — Green → Black
Green → Black
C-MDA
Source text (English): dark green / black
Caffeine
Caffeine — Froehde reagent — No reaction
No reaction
Caffeine (coffee, tea)
Source text (English): no color change
Camfetamine
Camfetamine — Froehde reagent — White → Orange → Yellow
White → Orange → Yellow
Camfetamine
Source text (English): tan > dark yellow
Cathinone
Cathinone — Froehde reagent — No reaction
No reaction
Cathinone
Source text (English): no color change
CBD
CBD — Froehde reagent — White → Brown
White → Brown
CBD (isolate)
Source text (English): brown
Chlorodehydromethyltestosterone
Chlorodehydromethyltestosterone — Froehde reagent — White → Blue → Purple
White → Blue → Purple
Chlorodehydromethyltestosterone
Source text (English): blue/purple
Chlorphentermine
Chlorphentermine — Froehde reagent — White → Green
White → Green
Chlorphentermine
Source text (English): green
Chlorpromazine
Chlorpromazine — Froehde reagent — White → Green → Black
White → Green → Black
Chlorpromazine HCl
Source text (English): green > black
Clonazolam
Clonazolam — Froehde reagent — No reaction
No reaction
Clonazolam (Clonitrazolam, c-lam, clam)
Source text (English): no color change
Cloniprazepam
Cloniprazepam — Froehde reagent — White → Yellow
White → Yellow
Cloniprazepam
Source text (English): yellowish
Cocaine
Cocaine (Coke, Coca, Blow, Girl, White, Snow, Nose candy, Chari) — Froehde reagent — No reaction
No reaction
Cocaine (Coke, Coca, Blow, Girl, White, Snow, Nose candy, Chari)
Source text (English): no color change
Cocaine (Crack) — Froehde reagent — No reaction
No reaction
Cocaine (Crack)
Source text (English): no color change
Codeine
Codeine — Froehde reagent — White → Yellow
White → Yellow
Codeine (Lean, Purple Drank, Syrup)
Source text (English): faint yellow
Coluracetam
Coluracetam — Froehde reagent — No reaction
No reaction
Coluracetam
Source text (English): no color change
Contac
Contac — Froehde reagent — White → Brown
White → Brown
Contac
Source text (English): Moderate olive brown
Creatine
Creatine — Froehde reagent — No reaction
No reaction
Creatine (N-Carbamimidoyl-N-methylglycine, Methylguanidoacetic acid)
Source text (English): no color change
CRL-40-941
CRL-40-941 — Froehde reagent — White → Yellow
White → Yellow
CRL-40,941
Source text (English): yellow
CRL-40,490
CRL-40,490 — Froehde reagent — White → Yellow
White → Yellow
CRL-40,490
Source text (English): yellow
CUMYL-4CN-BINACA
CUMYL-4CN-BINACA — Froehde reagent — White → Brown
White → Brown
CUMYL-4CN-BINACA
Source text (English): light brown
CUMYL-5F-P7AICA
CUMYL-5F-P7AICA — Froehde reagent — No reaction
No reaction
CUMYL-5F-P7AICA
Source text (English): no color change
CUMYL-5F-PICA
CUMYL-5F-PICA — Froehde reagent — White → Brown
White → Brown
CUMYL-5F-PICA
Source text (English): brown
CUMYL-5F-PINACA
CUMYL-5F-PINACA — Froehde reagent — White → Yellow
White → Yellow
CUMYL-5F-PINACA
Source text (English): light yellow
CUMYL-BICA
CUMYL-BICA — Froehde reagent — White → Brown
White → Brown
CUMYL-BICA
Source text (English): brown
CUMYL-PICA
CUMYL-PICA — Froehde reagent — White → Brown
White → Brown
CUMYL-PICA
Source text (English): brown
CUMYL-PINACA
CUMYL-PINACA — Froehde reagent — White → Red
White → Red
CUMYL-PINACA
Source text (English): red
CUMYL-THPINACA
CUMYL-THPINACA — Froehde reagent — White → Brown
White → Brown
CUMYL-THPINACA
Source text (English): brownish
Cyclobenzaprine
Cyclobenzaprine — Froehde reagent — White → Purple
White → Purple
Cyclobenzaprine
Source text (English): purple
Cyputylone
Cyputylone — Froehde reagent — White → Yellow → Green
White → Yellow → Green
Cyputylone
Source text (English): dark green
DB-MDBP
DB-MDBP — Froehde reagent — No reaction
No reaction
DB-MDBP
Source text (English): no color change
DBZP
DBZP — Froehde reagent — No reaction
No reaction
DBZP
Source text (English): no color change
Deschloroetizolam
Deschloroetizolam — Froehde reagent — No reaction
No reaction
Deschloroetizolam (etizolam-2)
Source text (English): no color change
Deschloroketamine
Deschloroketamine — Froehde reagent — White → Brown
White → Brown
DCK (2-Oxo-PCM, Deschloroketamine, DXE)
Source text (English): brown
Desomorphine
Desomorphine — Froehde reagent — White → Black → Purple
White → Black → Purple
Desomorphine (Krokodil)
Source text (English): grey-purple
Desoxypipradrol
Desoxypipradrol — Froehde reagent — No reaction
No reaction
2-DPMP
Source text (English): no color change
Dextromethorphan
Dextromethorphan — Froehde reagent — No reaction
No reaction
DXM (DMO, Dex, Robitussin, Delsym, DexAlone, Duract, syrup, robo, robotussin)
Source text (English): no color change
Dextromoramide
Dextromoramide — Froehde reagent — No reaction
No reaction
Dextro-moramide
Source text (English): no color change
Dibutylone
Dibutylone — Froehde reagent — White → Yellow → Green
White → Yellow → Green
Dibutylone
Source text (English): yellow > green / brown
Diclazepam
Diclazepam — Froehde reagent — No reaction
No reaction
Diclazepam
Source text (English): no color change
Diclofenac
Diclofenac — Froehde reagent — White → Purple
White → Purple
Diclofenac
Source text (English): light purple
Diethyl-thiambutene
Diethyl-thiambutene — Froehde reagent — White → Green → Blue
White → Green → Blue
Diethyl-thiambutene
Source text (English): green - green-blue
Diethylpropion
Diethylpropion — Froehde reagent — No reaction
No reaction
Amfepramone
Source text (English): no color change
Dimethocaine
Dimethocaine — Froehde reagent — White → Yellow
White → Yellow
Dimethocaine
Source text (English): yellow
Dimethyl-Cathinone
Dimethyl-Cathinone — Froehde reagent — No reaction
No reaction
Dimethyl-Cathinone
Source text (English): no color change
Dimethyl-thiambutene
Dimethyl-thiambutene — Froehde reagent — White → Green → Blue
White → Green → Blue
Dimethyl-thiambutene
Source text (English): green - green-blue
Dimethylamphetamine
Dimethylamphetamine — Froehde reagent — No reaction
No reaction
2,6-Dimethylamphetamine
Source text (English): no color change
Dimethylone
Dimethylone — Froehde reagent — White → Brown → Yellow
White → Brown → Yellow
Dimethylone
Source text (English): yellow - lime - green
Dimethylpentylone
Dimethylpentylone — Froehde reagent — White → Yellow → Green
White → Yellow → Green
Dimethylpentylone
Source text (English): yellow - green
Dioxaphteyl-thiambutene
Dioxaphteyl-thiambutene — Froehde reagent — No reaction
No reaction
Dioxaphteyl-thiambutene
Source text (English): no color change
Dipentylone
Dipentylone — Froehde reagent — White → Yellow → Green → Brown
White → Yellow → Green → Brown
Dipentylone
Source text (English): dark green / brown
Diphenhydramine
Diphenhydramine — Froehde reagent — White → Orange
White → Orange
Diphenhydramine
Source text (English): orange
Diphenidine
Diphenidine — Froehde reagent — No reaction
No reaction
Diphenidine (dpd)
Source text (English): no color change
Dipipanone
Dipipanone — Froehde reagent — White → Green → Blue
White → Green → Blue
Dipipanone
Source text (English): deep green-blue
DiPT
DiPT — Froehde reagent — No reaction
No reaction
DIPT (diisopropyltryptamine)
Source text (English): no color change
DMMA
DMMA — Froehde reagent — White → Yellow → Green
White → Yellow → Green
DMMA
Source text (English): very yellow green
DMT
DMT — Froehde reagent — No reaction
No reaction
DMT (N,N-DMT, Dmitry, The Glory, The Spirit Molecule, dimethyltryptamine)
Source text (English): no color change
DMXE
DMXE — Froehde reagent — No reaction
No reaction
DMXE
Source text (English): no color change
DOAM
DOAM — Froehde reagent — White → Yellow
White → Yellow
DOAM
Source text (English): yellow
DOB
DOB — Froehde reagent — White → Yellow → Black
White → Yellow → Black
DOB (Brolamfetamine, Bromo-DMA)
Source text (English): yellow > green
DOBU
DOBU — Froehde reagent — White → Yellow → Green
White → Yellow → Green
DOBU
Source text (English): yellow > greenish
DOF
DOF — Froehde reagent — White → Yellow → Green
White → Yellow → Green
DOF
Source text (English): yellow > greenish
DOIP
DOIP — Froehde reagent — White → Yellow → Green
White → Yellow → Green
DOiP (2,5-Dimethoxy-4-propylamphetamine)
Source text (English): yellow > light green
DOiPR
DOiPR — Froehde reagent — Green
Green
DOiPR
Source text (English): green
DOM
DOM — Froehde reagent — White → Yellow → Green
White → Yellow → Green
DOM (STP (Serenity, Tranquility, and Peace))
Source text (English): yellow > green
DOPR
DOPR — Froehde reagent — White → Yellow → Green
White → Yellow → Green
DOPR
Source text (English): yellow > light green
Doxepin
Doxepin — Froehde reagent — White → Red
White → Red
Doxepin HCl
Source text (English): deep reddish brown
DPT
DPT — Froehde reagent — White → Red → Brown
White → Red → Brown
DPT (Dipropyltryptamine, The Light)
Source text (English): wine -> brown
Dristan
Dristan — Froehde reagent — White → Green → Blue
White → Green → Blue
Dristan
Source text (English): light blueish green
EG-018
EG-018 — Froehde reagent — White → Orange → Green
White → Orange → Green
EG-018
Source text (English): orange > dark green
EG-2201
EG-2201 — Froehde reagent — White → Orange → Green
White → Orange → Green
EG-2201
Source text (English): orange > dark green
EMB-FUBINACA
EMB-FUBINACA — Froehde reagent — No reaction
No reaction
EMB-FUBINACA
Source text (English): no color change
Ephedrine
Ephedrine — Froehde reagent — White → Brown
White → Brown
Ephedrine (Ephedra)
Source text (English): brown or clear
Ephenidine
Ephenidine — Froehde reagent — White → Yellow
White → Yellow
Ephenidine (NEDPA)
Source text (English): light yellow
Ephylone
Ephylone (bk-EBDP, N-Ethyl-Pentylone) — Froehde reagent — White → Yellow → Green
White → Yellow → Green
Ephylone (bk-EBDP, N-Ethyl-Pentylone)
Source text (English): dark green
N-Ethylpentylone — Froehde reagent — White → Yellow → Green
White → Yellow → Green
N-Ethylpentylone
Source text (English): yellow>dark green
EPT
EPT — Froehde reagent — White → Yellow
White → Yellow
EPT Fumarate
Source text (English): faint yellow
Escaline
Escaline — Froehde reagent — White → Yellow → Green
White → Yellow → Green
Escaline
Source text (English): yellow > green
ETH-LAD
ETH-LAD — Froehde reagent — No reaction
No reaction
ETH-LAD
Source text (English): no color change
Ethoheptazine
Ethoheptazine — Froehde reagent — No reaction
No reaction
Ethoheptazine
Source text (English): no color change
Ethylcathinone
Ethylcathinone — Froehde reagent — No reaction
No reaction
ETH-CAT (Ethcathinone, Ethylpropion)
Source text (English): no color change
Ethylmethyl-thiambutene
Ethylmethyl-thiambutene — Froehde reagent — White → Green → Blue
White → Green → Blue
Ethylmethyl-thiambutene
Source text (English): green - green-blue
Ethylmorphine
Ethylmorphine — Froehde reagent — White → Yellow → Green → Blue
White → Yellow → Green → Blue
Ethylmorphine (Codethyline, Dionine)
Source text (English): yellow > green > blue
Ethylone
bk-MDEA (Ethylone) — Froehde reagent — White → Yellow → Green
White → Yellow → Green
bk-MDEA (Ethylone)
Source text (English): yellow > green
Ethylone (bk-MDEA, MDEC) — Froehde reagent — White → Yellow
White → Yellow
Ethylone (bk-MDEA, MDEC)
Source text (English): yellow > green
Ethylphenidate
Ethylphenidate — Froehde reagent — No reaction
No reaction
Ethylphenidate (EPH)
Source text (English): no color change
Etizolam
Etizolam — Froehde reagent — No reaction
No reaction
Etizolam (Etilaam, Etizest, sedekopan, depas, etizola, inxity, zoly, lamet, towa)
Source text (English): no color change
Etodesnitazene
Etodesnitazene — Froehde reagent — White → Orange
White → Orange
Etodesnitazene (Etazene)
Source text (English): orange
Etonitazepyne
Etonitazepyne — Froehde reagent — White → Yellow
White → Yellow
Etonitazepyne
Source text (English): yellow
Etoxeridine
Etoxeridine — Froehde reagent — No reaction
No reaction
Etoxeridine
Source text (English): no color change
Eutylone
Eutylone — Froehde reagent — White → Yellow → Black
White → Yellow → Black
Eutylone (bk-EBDB)
Source text (English): black
Exedrine
Exedrine — Froehde reagent — White → Blue
White → Blue
Exedrine
Source text (English): brilliant blue
Flubromazepam
Flubromazepam — Froehde reagent — White → Yellow
White → Yellow
Flubromazepam
Source text (English): yellowish
Flubromazolam
Flubromazolam — Froehde reagent — No reaction
No reaction
Flubromazolam (f-lam, flam)
Source text (English): no color change
Flubrotizolam
Flubrotizolam — Froehde reagent — No reaction
No reaction
Flubrotizolam
Source text (English): no color change
Fluorolintane
Fluorolintane — Froehde reagent — No reaction
No reaction
Fluorolintane
Source text (English): no color change
Fluoxymesterone
Fluoxymesterone — Froehde reagent — No reaction
No reaction
Fluoxymesterone
Source text (English): no color change
Flurazepam
Flurazepam — Froehde reagent — White → Orange
White → Orange
Flurazepam (Dalmane)
Source text (English): orange
FUB-AKB48
FUB-AKB48 — Froehde reagent — No reaction
No reaction
FUB-AKB48
Source text (English): no color change
FUB-AMB
FUB-AMB — Froehde reagent — No reaction
No reaction
FUB-AMB
Source text (English): no color change
FUB-NPB-22
FUB-NPB-22 — Froehde reagent — No reaction
No reaction
FUB-NPB-22
Source text (English): no color change
FUB-PB22
FUB-PB22 — Froehde reagent — White → Brown
White → Brown
FUB-PB22
Source text (English): light brown
FUBIMINA
FUBIMINA — Froehde reagent — White → Orange
White → Orange
FUBIMINA
Source text (English): orange
Furanylfentanyl
Furanylfentanyl — Froehde reagent — No reaction
No reaction
FU-F (furanyl-fentanyl)
Source text (English): no color change
FXE
FXE — Froehde reagent — No reaction
No reaction
FXE (Fluorexetamine, 3F-O-PCE)
Source text (English): no color change
G-130
G-130 — Froehde reagent — White → Yellow
White → Yellow
G-130
Source text (English): light yellow
Gabapentin
Gabapentin — Froehde reagent — No reaction
No reaction
Gabapentin (Neurontin, Gabarone, Gralise)
Source text (English): no color change
GTS-21
GTS-21 — Froehde reagent — White → Brown
White → Brown
GTS-21
Source text (English): dark brown
Guaifenesin
Guaifenesin — Froehde reagent — White → Green → Purple
White → Green → Purple
Guaifenesin
Source text (English): green with purple streaks
HDEP-28
HDEP-28 — Froehde reagent — White → Red → Purple
White → Red → Purple
HDEP-28
Source text (English): purplish red
HDMP-28
HDMP-28 — Froehde reagent — White → Red → Purple
White → Red → Purple
HDMP-28
Source text (English): purplish red
Heroin
Heroin — Froehde reagent — White → Purple
White → Purple
Heroin (H, Smack, Junk, Brown, diamorphine)
Source text (English): purple
Hexen
Hexen — Froehde reagent — White → Yellow
White → Yellow
HEX-EN (NEH, Ethyl-Hexedrone)
Source text (English): light yellow
HMA
HMA — Froehde reagent — White → Black
White → Black
HMA
Source text (English): black
Homoveratrylamine
Homoveratrylamine — Froehde reagent — White → Green → Blue
White → Green → Blue
Homoveratrylamine
Source text (English): light blue
HXE
HXE — Froehde reagent — White → Blue → White
White → Blue → White
HXE
Source text (English): dissapearing blueish
Hydrafinil
Hydrafinil — Froehde reagent — White → Blue → Black
White → Blue → Black
Hydrafinil
Source text (English): dark blue / black sample
Hydrocodone
Hydrocodone — Froehde reagent — White → Yellow → Orange
White → Yellow → Orange
Hydrocodone
Source text (English): light yellow / orange
Hydromorphine
Hydromorphine — Froehde reagent — White → Blue → Black
White → Blue → Black
Hydromorphine
Source text (English): dark blue > grey
Hydromorphone
Hydromorphone — Froehde reagent — White → Blue → Purple → Black
White → Blue → Purple → Black
Hydromorphone (Dilaudid)
Source text (English): blue > purple / grey
Hydroxypethidine
Hydroxypethidine — Froehde reagent — White → Green
White → Green
Hydroxy-pethidine
Source text (English): dull green
Ibuprofen
Ibuprofen — Froehde reagent — No reaction
No reaction
Ibuprofen
Source text (English): no color change
Isomethadone
Isomethadone — Froehde reagent — White → Brown → Purple → Blue
White → Brown → Purple → Blue
Isomethadone
Source text (English): brown-purple - violet-blue
Isophenmetrazine
Isophenmetrazine — Froehde reagent — No reaction
No reaction
Isophenmetrazine
Source text (English): no color change
Isopropylbenzylamine
Isopropylbenzylamine — Froehde reagent — No reaction
No reaction
Isopropylbenzylamine
Source text (English): no color change
Isopropylphenidate
Isopropylphenidate — Froehde reagent — No reaction
No reaction
IPH (Isopropylphenidate)
Source text (English): no color change
JWH-018
JWH-018 — Froehde reagent — White → Yellow
White → Yellow
JWH-018
Source text (English): yellow
JWH-122
JWH-122 — Froehde reagent — White → Brown
White → Brown
JWH-122
Source text (English): brown
JWH-200
JWH-200 — Froehde reagent — White → Yellow
White → Yellow
JWH-200
Source text (English): yellow
JWH-203
JWH-203 — Froehde reagent — White → Red → Purple
White → Red → Purple
JWH-203
Source text (English): red > violet > red
JWH-210
JWH-210 — Froehde reagent — White → Orange
White → Orange
JWH-210
Source text (English): orange
JWH-250
JWH-250 — Froehde reagent — White → Green
White → Green
JWH-250
Source text (English): faint green
JWH-308
JWH-308 — Froehde reagent — White → Yellow → Orange
White → Yellow → Orange
JWH-308
Source text (English): yellowish-orange
JWH-368
JWH-368 — Froehde reagent — White → Yellow
White → Yellow
JWH-368
Source text (English): yellow
JWH-369
JWH-369 — Froehde reagent — White → Yellow
White → Yellow
JWH-369
Source text (English): yellow
Ketamine
Ketamine (Ket, Kitty, Special K, Cat Tranquilizer, Ketaset, Ketalar, Ketanest, Vitamin K, kittens) — Froehde reagent — No reaction
No reaction
Ketamine (Ket, Kitty, Special K, Cat Tranquilizer, Ketaset, Ketalar, Ketanest, Vitamin K, kittens)
Source text (English): no color change
Ketamine H2O sol. — Froehde reagent — No reaction
No reaction
Ketamine H2O sol.
Source text (English): no color change
Ketobemidone
Ketobemidone — Froehde reagent — White → Blue → Black
White → Blue → Black
Ketobemidone
Source text (English): blue-grey
Levallorphan
Levallorphan — Froehde reagent — No reaction
No reaction
Levallorphan
Source text (English): no color change
Levorphanol
Levorphanol — Froehde reagent — No reaction
No reaction
Levorphanol (Dextrophan)
Source text (English): no color change
LH-21
LH-21 — Froehde reagent — No reaction
No reaction
LH-21
Source text (English): no color change
Lidocaine
Lidocaine — Froehde reagent — No reaction
No reaction
Lidocaine
Source text (English): no color change
LSD
LSD — Froehde reagent — No reaction
No reaction
LSD (LSD-25, Lucy, Acid, Tabs, Blotter, Gel, Windowpane)
Source text (English): no instant reaction
LSZ
LSZ — Froehde reagent — No reaction
No reaction
LSZ (LA-SS-Az, Diazedine, Lambda)
Source text (English): no instant reaction
LTI-701
LTI-701 — Froehde reagent — White → Brown
White → Brown
LTI-701
Source text (English): olive
Mace
Mace — Froehde reagent — White → Yellow
White → Yellow
Mace
Source text (English): light olive yellow
MAM-2201
MAM-2201 — Froehde reagent — White → Brown → Black
White → Brown → Black
MAM-2201
Source text (English): Orange
MCPP
MCPP — Froehde reagent — No reaction
No reaction
mCPP
Source text (English): foaming
MDA
MDA — Froehde reagent — White → Black
White → Black
MDA (Sass, Sally, Tenamfetamine)
Source text (English): instant black
MDAI
MDAI — Froehde reagent — White → Brown
White → Brown
MDAI
Source text (English): dark brown
Mde
MDE — Froehde reagent — White → Yellow → Blue → Black
White → Yellow → Blue → Black
MDE
Source text (English): Yellow/Green > Dark Blue
MDEA (MDE, Eve) — Froehde reagent — White → Yellow → Blue → Black
White → Yellow → Blue → Black
MDEA (MDE, Eve)
Source text (English): Yellow/Green > Dark Blue
MDMA
MDMA — Froehde reagent — White → Black
White → Black
MDMA (Molly, Mandy, Ecstasy, XTC, Rolls, Beans, Pingers)
Source text (English): instant black
MDMB-CHMCZCA
MDMB-CHMCZCA — Froehde reagent — White → Green → Black
White → Green → Black
MDMB-CHMCZCA
Source text (English): green > black
MDMB-CHMICA
MDMB-CHMICA — Froehde reagent — White → Yellow → Green → Brown
White → Yellow → Green → Brown
MDMB-CHMICA
Source text (English): light green/brown
MDPBP
MDPBP — Froehde reagent — White → Yellow → Green
White → Yellow → Green
MDPBP
Source text (English): yellow - green
MDPHP
MDPHP — Froehde reagent — No reaction
No reaction
MDPHP
Source text (English): no color change
MDPPP
MDPPP — Froehde reagent — White → Yellow → Green
White → Yellow → Green
MDPPP
Source text (English): yellow > green
MDPV
MDPV — Froehde reagent — White → Yellow
White → Yellow
MDPV (Bath Salts, NRG-1, bath_salts)
Source text (English): bright yellow
Mebroqualone
Mebroqualone — Froehde reagent — No reaction
No reaction
Mebroqualone
Source text (English): no color change
Melatonin
Melatonin — Froehde reagent — No reaction
No reaction
Melatonin
Source text (English): no color change
Memantine
Memantine — Froehde reagent — No reaction
No reaction
Memantine (Memaxa, Ebixa, Namenda, Namenda XR, Namzaric)
Source text (English): no color change
Mephedrone
Mephedrone — Froehde reagent — No reaction
No reaction
4-MMC (Mephedrone)
Source text (English): no color change
Mescaline
Mescaline freebase (Peyote, San Pedro, Cactus, Buttons) — Froehde reagent — White → Yellow → Brown → Green
White → Yellow → Brown → Green
Mescaline freebase (Peyote, San Pedro, Cactus, Buttons)
Source text (English): yellow > brown/green
Mescaline fumerate (Peyote, San Pedro, Cactus, Buttons) — Froehde reagent — White → Yellow → Brown → Green
White → Yellow → Brown → Green
Mescaline fumerate (Peyote, San Pedro, Cactus, Buttons)
Source text (English): yellow > brown/green
Mescaline HCl (Peyote, San Pedro, Cactus, Buttons) — Froehde reagent — White → Yellow → Brown → Green
White → Yellow → Brown → Green
Mescaline HCl (Peyote, San Pedro, Cactus, Buttons)
Source text (English): yellow > brown/green
Mescaline suflate (Peyote, San Pedro, Cactus, Buttons) — Froehde reagent — No reaction
No reaction
Mescaline suflate (Peyote, San Pedro, Cactus, Buttons)
Source text (English): no reaction or faint blue
Mescaline-NB2OMe
Mescaline-NB2OMe — Froehde reagent — White → Yellow
White → Yellow
Mescaline-NB2OMe
Source text (English): yellow
Metamnetamine
Metamnetamine — Froehde reagent — White → Red → Brown
White → Red → Brown
Metamnetamine
Source text (English): red > brown
Methadone
Methadone — Froehde reagent — White → Blue
White → Blue
Methadone (Dolophine, Methadose)
Source text (English): blue
Methallylescaline
Methallylescaline — Froehde reagent — White → Brown
White → Brown
Methallylescaline (MAL)
Source text (English): brown / dark brown
Methamphetamine
Methamphetamine — Froehde reagent — No reaction
No reaction
Methamphetamine (Meth, Speed, Ice, Glass, Shard, Tina, Crank, Desoxyn, Crystal, Tweak, Shabu, Yaba)
Source text (English): clear or red
Methapyrilene
Methapyrilene — Froehde reagent — White → Purple
White → Purple
Methapyrilene
Source text (English): purple
Methcathinone
Methcathinone — Froehde reagent — No reaction
No reaction
Methcathinone
Source text (English): no color change
Methedrone
Methedrone — Froehde reagent — No reaction
No reaction
bk-PMMA
Source text (English): no color change
Methiopropamine
Methiopropamine — Froehde reagent — White → Brown
White → Brown
Methiopropamine
Source text (English): light brown
MPA (Methiopropamine) — Froehde reagent — White → Brown
White → Brown
MPA (Methiopropamine)
Source text (English): light brown
Methoxetamine
Methoxetamine — Froehde reagent — No reaction
No reaction
MXE (Methoxetamine)
Source text (English): no color change
Methoxphenidine
Methoxphenidine — Froehde reagent — White → Black → Brown
White → Black → Brown
MXP (2-MeO-Diphenidine)
Source text (English): light brown
Methoxpropamine
Methoxpropamine — Froehde reagent — No reaction
No reaction
MXPr
Source text (English): no color change
Methoxyacetyl-Fentanyl
Methoxyacetyl-Fentanyl — Froehde reagent — No reaction
No reaction
Methoxyacetyl-F
Source text (English): no color change
Methoxyketamine
Methoxyketamine — Froehde reagent — No reaction
No reaction
2-MeO-Ketamine (Methoxyketamine)
Source text (English): no color change
Methoxypiperamide
Methoxypiperamide — Froehde reagent — No reaction
No reaction
Methoxypiperamide
Source text (English): no color change
Methyl-desorphine
Methyl-desorphine — Froehde reagent — White → Brown
White → Brown
Methyl-desorphine
Source text (English): brown
Methyl-dihydro-morphine
Methyl-dihydro-morphine — Froehde reagent — White → Yellow → Black → Purple
White → Yellow → Black → Purple
Methyl-dihydro-morphine
Source text (English): grey-purple-yellow
Methylmorphenate
Methylmorphenate — Froehde reagent — No reaction
No reaction
Methylmorphenate
Source text (English): no color change
Methylone
Methylone — Froehde reagent — White → Yellow
White → Yellow
bk-MDMA (Methylone)
Source text (English): bright yellow
Methylphenidate
Methylphenidate — Froehde reagent — White → Yellow
White → Yellow
Methylphenidate (Concerta, Methylin, Ritalin, Equasym XL, mph, biphentin)
Source text (English): no color change -> Tan
Metizolam
Metizolam — Froehde reagent — White → Yellow
White → Yellow
Metizolam (Desmethyletizolam, metiz)
Source text (English): yellowish
Metonitazene
Metonitazene — Froehde reagent — White → Yellow
White → Yellow
Metonitazene
Source text (English): yellowish
Metopot
Metopot — Froehde reagent — White → Purple
White → Purple
Metopot
Source text (English): dull violet
Mexedrone
Mexedrone — Froehde reagent — No reaction
No reaction
4-MMeOC (Mexedrone)
Source text (English): no color change
Mitragynine
Mitragynine — Froehde reagent — White → Green
White → Green
Mitragynine (Kratom)
Source text (English): green / dark green
MMDA
MMDA — Froehde reagent — White → Blue
White → Blue
MMDA
Source text (English): Blue > Dark Blue
MN24
MN24 — Froehde reagent — White → Brown
White → Brown
MN24
Source text (English): brown
MNA
MNA — Froehde reagent — White → Purple
White → Purple
MNA
Source text (English): purple
MO-CHMINACA
MO-CHMINACA — Froehde reagent — No reaction
No reaction
MO-CHMINACA
Source text (English): no color change
Modafinil
Modafinil — Froehde reagent — White → Orange → Red
White → Orange → Red
Modafinil (Alertec, Modavigil, Modiodal, Provigil, Modalert)
Source text (English): deep orange / red
Morpheridine
Morpheridine — Froehde reagent — No reaction
No reaction
Morpheridine
Source text (English): no color change
Morphine
Morphine — Froehde reagent — White → Purple
White → Purple
Morphine (MS-Contin, Oramorph, Zomorph, Sevredol, Duramorph)
Source text (English): (dark) purple
Morphine-N-oxide
Morphine-N-oxide — Froehde reagent — White → Purple → Brown
White → Purple → Brown
Morphine-N-oxide
Source text (English): dull purple - brown
MPBP
MPBP — Froehde reagent — No reaction
No reaction
MPBP
Source text (English): no color change
MPHP
MPHP — Froehde reagent — No reaction
No reaction
MPHP
Source text (English): no color change
MPPP
MPPP — Froehde reagent — No reaction
No reaction
MPPP
Source text (English): no color change
MT-45
MT-45 — Froehde reagent — White → Yellow
White → Yellow
MT-45
Source text (English): light yellow
MXiPr
MXiPr — Froehde reagent — No reaction
No reaction
MXiPr (MXiP)
Source text (English): no color change
Myrophine
Myrophine — Froehde reagent — No reaction
No reaction
Myrophine
Source text (English): no color change
N-(2,6-Dimethylphenyl)-1-piperidineacetamide
N-(2,6-Dimethylphenyl)-1-piperidineacetamide — Froehde reagent — No reaction
No reaction
N-(2,6-Dimethylphenyl)-1-piperidineacetamide
Source text (English): no color change
N-desethyletonitazene
N-desethyletonitazene — Froehde reagent — White → Yellow
White → Yellow
N-desethyl Etonitazene
Source text (English): yellow
N-Desethylisotonitazene
N-Desethylisotonitazene — Froehde reagent — White → Blue
White → Blue
N-Desethylisotonitazene
Source text (English): light blue
N-Ethyl-Ketamine
N-Ethyl-Ketamine — Froehde reagent — No reaction
No reaction
N-Ethyl-Ketamine
Source text (English): no color change
N-Me-2C-H
N-Me-2C-H — Froehde reagent — White → Yellow → Green
White → Yellow → Green
N-Me-2C-H
Source text (English): green - yellow
N-Me-4'4'-difluoro-modafinil
N-Me-4'4'-difluoro-modafinil — Froehde reagent — White → Yellow
White → Yellow
N-Me-4'4'-difluoro-modafinil
Source text (English): yellow
N-Me-bk-MMDA-2
N-Me-bk-MMDA-2 — Froehde reagent — White → Yellow → Brown
White → Yellow → Brown
N-Me-bk-MMDA-2
Source text (English): yellow - brown
Nalorphine
Nalorphine — Froehde reagent — No reaction
No reaction
Nalorphine
Source text (English): no color change
Naphyrone
Naphyrone — Froehde reagent — White → Orange
White → Orange
Naphyrone
Source text (English): faint orange
NEB
NEB — Froehde reagent — No reaction
No reaction
NEB
Source text (English): no color change
NEP
NEP — Froehde reagent — No reaction
No reaction
NEP (n-ethylpentedrone)
Source text (English): no color change
NiPP
NiPP — Froehde reagent — No reaction
No reaction
NiPP
Source text (English): no color change
Nitracaine
Nitracaine — Froehde reagent — No reaction
No reaction
Nitracaine
Source text (English): no color change
Nitrazolam
Nitrazolam — Froehde reagent — No reaction
No reaction
Nitrazolam
Source text (English): no color change
NM-2-AI
N-Methyl-2AI — Froehde reagent — White → Brown
White → Brown
N-Methyl-2AI
Source text (English): dark brown
NM-2AI — Froehde reagent — White → Pink
White → Pink
NM-2AI
Source text (English): light pink
NM-2201
NM-2201 — Froehde reagent — White → Yellow → Green
White → Yellow → Green
NM-2201
Source text (English): yellow > green
Norcodeine
Norcodeine — Froehde reagent — No reaction
No reaction
Norcodeine
Source text (English): no color change
Norflurazepam
Norflurazepam — Froehde reagent — No reaction
No reaction
Norflurazepam
Source text (English): no color change
Normethadone
Normethadone — Froehde reagent — White → Yellow → Green
White → Yellow → Green
Normethadone
Source text (English): yellow-green
Normorphine
Normorphine — Froehde reagent — White → Black → Green
White → Black → Green
Normorphine
Source text (English): grey - green
NPB-22
NPB-22 — Froehde reagent — No reaction
No reaction
NPB-22
Source text (English): no color change
NRG-4
NRG-4 — Froehde reagent — White → Brown
White → Brown
NRG-4
Source text (English): brown
O-DSMT
O-DSMT — Froehde reagent — White → Blue → Yellow
White → Blue → Yellow
O-DSMT
Source text (English): blue > olive
O-PCE
O-PCE — Froehde reagent — No reaction
No reaction
2-Oxo-PCE (O-PCE, 2-DCNEK, Deschloro-N-ethyl-ketamine)
Source text (English): no color change
Opium
Opium — Froehde reagent — White → Brown
White → Brown
Opium
Source text (English): brownish black
Oxycodone
Oxycodone — Froehde reagent — White → Yellow
White → Yellow
Oxycodone
Source text (English): yellow
Oxymorphone
Oxymorphone — Froehde reagent — White → Blue → Purple
White → Blue → Purple
Oxymorphone
Source text (English): blue > violet
Papaverine
Papaverine — Froehde reagent — White → Green
White → Green
Papaverine HCl
Source text (English): light green
para-Methyl-4-methylaminorex
para-Methyl-4-methylaminorex — Froehde reagent — No reaction
No reaction
para-Methyl-4-methylaminorex
Source text (English): no color change
Paracetamol
Paracetamol — Froehde reagent — White → Green → Blue
White → Green → Blue
Paracetamol (Acetaminophen)
Source text (English): blueish / teal
PB-22
PB-22 — Froehde reagent — White → Brown
White → Brown
PB-22
Source text (English): brown
PCEEA
PCEEA — Froehde reagent — No reaction
No reaction
PCEEA
Source text (English): no color change
pCPP
pCPP — Froehde reagent — No reaction
No reaction
pCPP
Source text (English): foaming
PDM-35
PDM-35 — Froehde reagent — No reaction
No reaction
PDM-35
Source text (English): no color change
Pentazocine
Pentazocine — Froehde reagent — White → Blue
White → Blue
Pentazocine
Source text (English): blue
Pentedrone
Pentedrone — Froehde reagent — No reaction
No reaction
Pentedrone (Drone)
Source text (English): no color change
Pentylone
Pentylone — Froehde reagent — White → Yellow → Green
White → Yellow → Green
Pentylone
Source text (English): yellow > green
Pethidine
Meperidine — Froehde reagent — White → Black
White → Black
Meperidine
Source text (English): grey
Pethidine (Meperidine, Demerol, Dolantin, Dolcontral) — Froehde reagent — No reaction
No reaction
Pethidine (Meperidine, Demerol, Dolantin, Dolcontral)
Source text (English): no color change
Pethidine (Meperidine, Demerol, Dolantin, Dolcontral) — Froehde reagent — White → Yellow
White → Yellow
Pethidine (Meperidine, Demerol, Dolantin, Dolcontral)
Source text (English): clear or yellow
Phenacetin
Phenacetin — Froehde reagent — White → Purple
White → Purple
Phenacetin
Source text (English): violet
Phenadoxone
Phenadoxone — Froehde reagent — White → Green → Blue
White → Green → Blue
Phenadoxone
Source text (English): deep green-blue
Phenethylamine
Phenethylamine — Froehde reagent — No reaction
No reaction
Phenethylamine
Source text (English): faint tan
Phenetrazine
Phenetrazine — Froehde reagent — No reaction
No reaction
Phenetrazine
Source text (English): no color change
Phenibut
Phenibut — Froehde reagent — No reaction
No reaction
Phenibut (Fenibut, Phenybut, PhGABA)
Source text (English): foaming
Phenmetetrazine
Phenmetetrazine — Froehde reagent — No reaction
No reaction
Phenmetetrazine precursor
Source text (English): no color change
Phenomorphan
Phenomorphan — Froehde reagent — No reaction
No reaction
Phenomorphan
Source text (English): no color change
Phenoxymethylpenicillin
Phenoxymethylpenicillin — Froehde reagent — White → Blue
White → Blue
Phenoxymethylpenicillin
Source text (English): blue
Phentermine
Phentermine — Froehde reagent — White → Brown
White → Brown
Phentermine
Source text (English): brown
Phenylpiracetam
Phenylpiracetam — Froehde reagent — No reaction
No reaction
Phenylpiracetam
Source text (English): no color change
Pholcodeine
Pholcodeine — Froehde reagent — No reaction
No reaction
Pholcodeine
Source text (English): no color change
Pivoxazepam
Pivoxazepam — Froehde reagent — White → Yellow
White → Yellow
Pivoxazepam
Source text (English): light yellow
PMA
PMA — Froehde reagent — White → Green
White → Green
PMA
Source text (English): light green / blue
PMEA
PMEA — Froehde reagent — White → Green
White → Green
PMEA
Source text (English): light green / blue
PMK ethyl glycidate
PMK ethyl glycidate — Froehde reagent — White → Yellow → Brown → Black
White → Yellow → Brown → Black
PMK ethyl glycidate
Source text (English): black / dark yellow-brown
PMMA
PMMA — Froehde reagent — White → Green
White → Green
PMMA
Source text (English): light green / blue
PRE-084
PRE-084 — Froehde reagent — White → Brown
White → Brown
PRE-084
Source text (English): brown
Pregabalin
Pregabalin — Froehde reagent — No reaction
No reaction
Pregabalin (Lyrica, Nervalin)
Source text (English): no color change
PRL-8-53
PRL-8-53 — Froehde reagent — No reaction
No reaction
PRL-8-53
Source text (English): no color change
Procaine
Procaine — Froehde reagent — No reaction
No reaction
Procaine
Source text (English): no color change
Proheptazine
Proheptazine — Froehde reagent — White → Black → Purple
White → Black → Purple
Proheptazine
Source text (English): fading grey-purple
Promethazine
Promethazine — Froehde reagent — White → Purple
White → Purple
Promethazine
Source text (English): purple red
Properidine
Properidine — Froehde reagent — No reaction
No reaction
Properidine
Source text (English): no color change
Propoxyphene
Propoxyphene — Froehde reagent — White → Red
White → Red
Propoxyphene HCl
Source text (English): dark greyish red or brown
Propxyphene
Propxyphene — Froehde reagent — White → Black
White → Black
Propxyphene
Source text (English): grey
Propylhexedrine
Propylhexedrine — Froehde reagent — White → Purple
White → Purple
Propylhexadrine
Source text (English): purple red
Propylphenidate
Propylphenidate — Froehde reagent — No reaction
No reaction
Propylphenidate
Source text (English): no color change
Proscaline
Proscaline — Froehde reagent — White → Brown → Black
White → Brown → Black
Proscaline
Source text (English): yellow > green
Pseudoephedrine
Pseudoephedrine — Froehde reagent — No reaction
No reaction
Pseudoephedrine
Source text (English): no color change
PV-8
PV-8 — Froehde reagent — No reaction
No reaction
PV8
Source text (English): no color change
PV-9
PV-9 — Froehde reagent — No reaction
No reaction
PV9
Source text (English): no color change
PX2
PX2 — Froehde reagent — No reaction
No reaction
PX2
Source text (English): no color change
Pyrazolam
Pyrazolam — Froehde reagent — White → Yellow
White → Yellow
Pyrazolam
Source text (English): light yellow
Pyrilamine
Pyrilamine — Froehde reagent — White → Purple
White → Purple
Pyrilamine
Source text (English): purple
Pyrovaleron
Pyrovaleron — Froehde reagent — No reaction
No reaction
Pyrovaleron
Source text (English): no color change
Race-methorphan
Race-methorphan — Froehde reagent — No reaction
No reaction
Race-methorphan
Source text (English): no color change
Racemoramide
Racemoramide — Froehde reagent — No reaction
No reaction
Racemoramide
Source text (English): no color change
Racemorphan
Racemorphan — Froehde reagent — No reaction
No reaction
Racemorphan
Source text (English): no color change
RCS-4
RCS-4 — Froehde reagent — White → Yellow
White → Yellow
RCS-4
Source text (English): yellow
RTI-111
RTI-111 — Froehde reagent — No reaction
No reaction
RTI-111
Source text (English): no color change
Salicylic acid
Salicylic acid — Froehde reagent — White → Purple
White → Purple
Salicylic acid
Source text (English): purple red
SDB-005
SDB-005 — Froehde reagent — White → Green
White → Green
SDB-005
Source text (English): green
SDB-006-N-phenyl-analog
SDB-006-N-phenyl-analog — Froehde reagent — White → Brown
White → Brown
SDB-006-N-phenyl-analog
Source text (English): light brown
STS-135
STS-135 — Froehde reagent — White → Orange → Red
White → Orange → Red
STS-135
Source text (English): orange (slow > red)
Sugar
Sugar — Froehde reagent — White → Yellow
White → Yellow
Sugar
Source text (English): brilliant yellow
Sunifiram
Sunifiram — Froehde reagent — No reaction
No reaction
Sunifiram
Source text (English): no color change
Tadalafil
Tadalafil — Froehde reagent — White → Blue
White → Blue
Cialis / Tadalafil
Source text (English): dark blue
Tapentadol
Tapentadol — Froehde reagent — White → Blue
White → Blue
Tapentadol (Nucynta, Palexia, Yantil, Yantil SR)
Source text (English): blue
tBuONE
tBuONE — Froehde reagent — White → Yellow → Green
White → Yellow → Green
tBuONE
Source text (English): green
TDIQ
TDIQ — Froehde reagent — White → Green
White → Green
TDIQ
Source text (English): dark green
Temazepam
Temazepam — Froehde reagent — No reaction
No reaction
Temazepam (Restoril, Normison)
Source text (English): no color change
Testosterone propionate
Testosterone propionate — Froehde reagent — White → Yellow → Brown
White → Yellow → Brown
Testosterone propionate
Source text (English): yellow>brown
Tetracaine
Tetracaine — Froehde reagent — No reaction
No reaction
Tetracaine
Source text (English): no color change
Tetracyline
Tetracyline — Froehde reagent — White → Purple
White → Purple
Tetracyline
Source text (English): purple red
Tetrahydropalmatine
Tetrahydropalmatine — Froehde reagent — No reaction
No reaction
Tetrahydropalmatine
Source text (English): no color change
Tfmpp
Tfmpp — Froehde reagent — No reaction
No reaction
TFMPP
Source text (English): no color change
TH-PBP
TH-PBP — Froehde reagent — White → Yellow
White → Yellow
TH-PBP
Source text (English): light yellow
TH-PVP
TH-PVP — Froehde reagent — White → Yellow
White → Yellow
TH-PVP
Source text (English): light yellow
Thebacon
Thebacon — Froehde reagent — White → Green → Yellow → Orange
White → Green → Yellow → Orange
Thebacon
Source text (English): green > yellow / orange
Thebaine
Thebaine — Froehde reagent — White → Orange
White → Orange
Thebaine HCl
Source text (English): orange / red
Thioridazine
Thioridazine — Froehde reagent — White → Purple
White → Purple
Thioridazine
Source text (English): purple red
THJ-018
THJ-018 — Froehde reagent — White → Brown
White → Brown
THJ-018
Source text (English): dark brown
THJ-2201
THJ-2201 — Froehde reagent — White → Brown → Black
White → Brown → Black
THJ-2201
Source text (English): brown > black
Tianeptine
Tianeptine — Froehde reagent — No reaction
No reaction
Tianeptine (Stablon, Coaxil, Tatinol)
Source text (English): no color change
Tiletamine
Tiletamine — Froehde reagent — No reaction
No reaction
Tiletamine
Source text (English): no color change
TMA
TMA — Froehde reagent — White → Yellow
White → Yellow
TMA
Source text (English): yellow
TMA-2
TMA-2 — Froehde reagent — White → Green
White → Green
TMA-2
Source text (English): green
TMA-6
TMA-6 — Froehde reagent — White → Yellow
White → Yellow
TMA-6
Source text (English): clear (yellow)
Tolpronine
Tolpronine — Froehde reagent — White → Green → Black → Purple
White → Green → Black → Purple
Tolpronine
Source text (English): green-grey - grey-violet
Tramadol
Tramadol — Froehde reagent — White → Green
White → Green
Tramadol (Tramal, Tadol, Tramacur, Tramundin)
Source text (English): muddy green
Trenbolone
Trenbolone — Froehde reagent — White → Brown
White → Brown
Trenbolone Acetate
Source text (English): brown / dark brown
Trifluoperazine
Trifluoperazine — Froehde reagent — White → Orange
White → Orange
Trifluoperazine
Source text (English): orange
Triflupromazine
Triflupromazine — Froehde reagent — White → Orange
White → Orange
Triflupromazine
Source text (English): orange
Trimeperidine
Trimeperidine — Froehde reagent — No reaction
No reaction
Trimeperidine
Source text (English): no color change
Tryptamine
Tryptamine — Froehde reagent — White → Yellow → Green
White → Yellow → Green
Tryptamine
Source text (English): dark green
U-47700
U-47700 — Froehde reagent — No reaction
No reaction
U-47700
Source text (English): no color change
U-49900
U-49900 — Froehde reagent — No reaction
No reaction
U-49900
Source text (English): no color change
UR-144
UR-144 — Froehde reagent — White → Yellow
White → Yellow
UR-144
Source text (English): light yellow
Valeryfentanyl
Valeryfentanyl — Froehde reagent — No reaction
No reaction
Valeryfentanyl
Source text (English): no color change
Vitamine C
Vitamine C — Froehde reagent — White → Yellow
White → Yellow
Vitamine C
Source text (English): pale yellow
VX-809
VX-809 — Froehde reagent — No reaction
No reaction
VX-809
Source text (English): no color change
W-15
W-15 — Froehde reagent — No reaction
No reaction
W-15
Source text (English): no color change
XLR-11
XLR-11 — Froehde reagent — No reaction
No reaction
XLR-11
Source text (English): no color change
Xylazine
Xylazine — Froehde reagent — No reaction
No reaction
Xylazine
Source text (English): no color change
Xylopropamine
Xylopropamine — Froehde reagent — White → Yellow → Brown
White → Yellow → Brown
Xylopropamine
Source text (English): yellow - brown / yellow
Colour swatches are illustrative, not measured colour values or reaction timing. Original reference observations are preserved below each result.