4-Fluoromethamphetamine
| 4-FMA | |
|---|---|
 | |
| Molecular structure via molpic based on CDK |
| Rotamer [] | |
|---|---|
| Conformer structure via 3Dmol.js |
| Physical properties [] | |
|---|---|
| Molecular mass | 167.22 g/mol [1] |
| Predicted LogP | 2.2 [1] |
| Structural Identifiers [] | |
|---|---|
| Molecular formula | C10H14FN [1] |
| IUPAC name | 1-(4-fluorophenyl)-N-methylpropan-2-amine [1] |
| SMILES | CC(CC1=CC=C(C=C1)F)NC [1] |
| InChI | InChI=1S/C10H14FN/c1-8(12-2)7-9-3-5-10(11)6-4-9/h3-6,8,12H,7H2,1-2H3 [1] |
| InChIKey | YCWZPIHKUYZTFM-UHFFFAOYSA-N [1] |
| Dosing[] |
|---|
| Intravenous [] | |
|---|---|
| Light | ≤ 20 mg(11x - 84.6%) |
| Common | 20 mg |
| Strong | 20 mg |
| Heavy | 20 - 34.3 mg |
| Extreme | 34.3 mg +(2x - 15.4%) |
| Oral [] | |
|---|---|
| Light | ≤ 74.6 mg(6x - 33.3%) |
| Common | 74.6 - 100 mg(5x - 27.8%) |
| Strong | 100 - 110 mg(4x - 22.2%) |
| Heavy | 110 - 123 mg(2x - 11.1%) |
| Extreme | 123 mg +(1x - 5.6%) |
Statistically derived dosages via DBI-IGS We do not take any responsibility for medical complications or loss of life sustained by following these dosages blindly. |
4-Fluoromethamphetamine (also known as 4-FMA, Dtxcid901012237, p-Fluoromethamphetamine, [1-(4-fluorophenyl)propan-2-yl](methyl)amine, 1-(4-Fluorophenyl)-2-(methylamino)propane, 1-(4-Fluorophenyl)-2(methylamino)propane, p-Fluoro-N-α-dimethylbenzeneethanamine, 4 Fluoromethamphetamine, Schembl178552 or Akos010037360) is a stimulant and entactogen substance of the amphetamine class.
Chemistry
Stereochemistry []
4-Fluoromethamphetamine is a racemic mixture of the enantiomers.
| Stereoisomerism |
|---|
| Stereoisomer enumberation with rdkit |
Reagents
There are currently 8 reagent-interactions on DrugsPRO
| Reagent | Color change |
|---|---|
| Marquis | |
| Mecke | |
| Mandelin | |
| Liebermann | |
| Robadope | |
| Simon's | |
| Ehrlich | |
| Hofmann |
Subjective effects []
| Mere / 4-Fluoromethamphetamine [] | |
|---|---|
| bonzi / 4-Fluoromethamphetamine [] | |
|---|---|
| 0xea / 4-Fluoromethamphetamine [] | |
|---|---|
Routes:
| |
Experience reports
Erowid
There are currently 11 experience reports involving 4-fluoromethamphetamine on Erowid: []
- "Gentle Clear Headed Feelings" by Revelator
- "More Than I Expected" by ericadsg788
- "Tricky Dosing Less Well-Documented Substance" by Henk
- "Halogenated Computer Zombie" by speedracer
- "Over a Three-Day Period" by DTR
- "A Rushy Rolly Kinda Thing" by Tokidoki
- "A Train Ride I Wasn't Prepared For" by Aefy
- "Constant State of GREAT!" by J0336
- "Higher Dose Caused Euphoria" by Henk
- "Powerfully Stimulating, Medium-Duration" by Sarcan
- "Had the Realization I Had Done Something Stupid" by Tviewer
Legal status []
- Canada: 4-Fluoromethamphetamine is a Schedule I substance.
- United States: 4-Fluoromethamphetamine is a Unscheduled substance.
- Germany: 4-Fluoromethamphetamine is a Anlage II substance.
- United Kingdom: 4-Fluoromethamphetamine is a Class A substance.
- Australia: 4-Fluoromethamphetamine is a S9 substance.
See also []
External links []
References []
National Center for Biotechnology Information. PubChem Compound Summary for CID 11745017, 4-Fluoromethamphetamine. Accessed May 30, 2026. https://pubchem.ncbi.nlm.nih.gov/compound/11745017
U.S. Food and Drug Administration; National Center for Advancing Translational Sciences. 4-Fluoromethamphetamine. UNII: 8LLF59DO7F. Global Substance Registration System. Accessed May 30, 2026. https://gsrs.ncats.nih.gov/ginas/app/beta/substances/8LLF59DO7F