C30-NBOMe (also known as 30C-NBOMe or 25C-NB345OMe) is structurally distinct from typical NBOMes due to its 3,4,5-trimethoxybenzyl group (mescaline-like pattern) rather than the standard 2-methoxybenzyl group. Despite being theoretically related to active NBOMe compounds, extensive anecdotal evidence from 2013-2016 indicates this substance produces minimal to no psychoactive effects at doses ranging from micrograms to hundreds of milligrams across multiple routes of administration. Only one isolated positive report exists amid numerous reports of complete inactivity. Material sold as C30-NBOMe may be an inert compound, a mislabeled substance, degradation products, or simply inactive due to its unusual chemical structure. The substance is not documented in major harm reduction databases (PsychonautWiki, TripSit).
Also known as: 30c-nbome, 2c-c-nb3ome, Nb3ome-2c-c, 25c-nb345ome
Classification
Chemical: Phenethylamine
Psychoactive: Psychedelic
Tag: Hallucinogen
Tag: Research-Chemical
Effects
Peripheral Vasoconstriction
Body Load
Stimulation
Teeth Grinding
Coldness
Physical Discomfort
Euphoria
Empathy
Time Distortion
Anxiety
Afterglow
No Consistent Psychoactive Effects Reported
Visual Geometry
Color Enhancement
Auditory Enhancement
Open Eye Visuals
Geometric Imagery
Patterning
Routes of Administration
Buccal
Dosage
Threshold: 200-400 ug
Light: 400-800 ug
Common: 800-1500 ug
Strong: 1500–2500 µg
Heavy: 2500+ µg
Duration
Onset: 0.25-0.75 h
Comeup: 0.5-1 h
Peak: 1.5-3.5 h
Offset: 3.5-6.5 h
After Effects: 6-24 h
Total Duration: 4-11 h
Insufflated
Dosage
Threshold: 100-300 ug
Light: 300-600 ug
Common: 600-1200 ug
Strong: 1200–2000 µg
Heavy: 2000+ µg
Duration
Onset: 0.08-0.33 h
Comeup: 0.25-0.5 h
Peak: 1.5-3.5 h
Offset: 2-4 h
After Effects: 4-18 h
Total Duration: 3-8 h
Oral
Dosage
Threshold: 1-2 mg
Light: 2-4 mg
Common: 4-8 mg
Strong: 8-12 mg
Heavy: No reliable effects at 300 mg
Duration
Onset: 0.5-1.5 h
Comeup: 0.75-1.5 h
Peak: 1.5-3.5 h
Offset: 2-4 h
After Effects: 2-6 h
Sublingual
Dosage
Heavy: No effects observed at 50 mg
Duration
No data available for this section yet.
Intravenous
Dosage
Heavy: No effects reported at 20 mg
Duration
No data available for this section yet.
Harm Reduction
Check interactions before mixing substances, pay attention to dose spacing and hydration, and treat all dosage guidance as approximate rather than guaranteed safe.
Sources
Substance data is aggregated from the following public harm-reduction and reference sources.
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25C-NB3OMe - מדריך חומרים של DrugsPRO
25C-NB3OMe: C30-NBOMe (also known as 30C-NBOMe or 25C-NB345OMe) is structurally distinct from typical NBOMes due to its 3,4,5-trimethoxybenzyl group (mescaline-like pattern) rather than the standard 2-methoxybenzyl group. Despite being theoretically related to active NBOMe compounds, extensive anecd
