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Library 4clppp 4-Cl-PPP (4-chloro-α-pyrrolidinopropiophenone) is an obscure designer stimulant with minimal human data beyond forum reports. Para-chloro a…

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Library 4clpvp 4-Chloro-α-pyrrolidinovalerophenone is an emerging recreational designer drug of the pyrrolidinophenone class, similar in structure to α-py…

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Library 4cma 4-CMA is a prodrug that metabolizes to 4-Chloroamphetamine (4-CA), which selectively destroys serotonergic axon terminals. Lasting mood, co…

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Library 4cmc 4-CMC is a synthetic stimulant and entactogen of the substituted cathinone class. It has been sold online as a designer drug, often markete…

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Library 4eec Pharmacology is presumed to involve mixed monoamine reuptake inhibition and releasing action with NET≈DAT>SERT, similar to 4-MEC but slight…

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Library 4emc 4-EMC is a synthetic stimulant and entactogen of the substituted cathinone class. It is a structural isomer of both 4-MEC and 3,4-DMMC. Ini…

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Library 4epd 4-EPD is a ring-ethyl analogue of pentedrone first detected in European drug-checking samples in 2018. Toxicological information is sparse;…

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Library 4ethylephedrine

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Library 4f3methylalphapvp Pharmacology data are scarce; in vitro transporter assays of related α-PVP analogs suggest nanomolar NET/DAT inhibition. A 2022 forensic ca…

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Library 4f4mar 4F-4-MAR first appeared in Slovenia (2018) and was forensically confirmed via HR-MS and NMR. The para-fluoro substitution raises lipophilic…

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Library 4fa 4-FA is a synthetic substituted amphetamine that produces a distinctive combination of stimulant and entactogenic effects. It became commer…

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Library 4falphaphp

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Library 4fea 4-FEA is the ethyl analogue of 4-FA with strong serotonergic properties. Limited formal pharmacological research exists; batch-to-batch var…

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Library 4fec 4-Fluoroethcathinone is a stimulant of the cathinone class and structural analog of flephedrone (4-fluoromethcathinone) that has been sold…

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Library 4feph 4F-EPH is a novel research chemical with minimal human use history and unknown long-term toxicity. First reported death occurred in 2016 in…

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Library 4fluoro3methylalphapvp

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Library 4fluoro4methylaminorex

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Library 4fluorocathinone

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Library 4fluorococaine 4′-Fluorococaine is a tropane derivative drug which is a synthetic analogue of cocaine. Unlike related compounds such as the corresponding…

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Library 4fluorodeprenyl Metabolizes to 4-fluoroamphetamine and 4-fluoromethamphetamine, which may add dopaminergic load and extend duration. Risk of serotonin synd…