4'-Fluoro-4-methylaminorex

4'-Fluoro-4-methylaminorex (4F-MAR, 4-FPO) is a recreational designer drug from the substituted aminorex family, with stimulant effects. It was first detected in Slovenia in 2018.^[1][2][3] It was made illegal in Italy in March 2020.^[4]

4'-Fluoro-4-methylaminorex

Identifiers
IUPAC name 4-methyl-5-(4-fluorophenyl)-4,5-dihydro-1,3-oxazol-2-amine
CAS Number	1364933-64-1 Y
PubChem CID	134080816
ChemSpider	78231362
UNII	QMW9X4B373
CompTox Dashboard (EPA)	DTXSID501336900
Chemical and physical data
Formula	C10H11FN2O
Molar mass	194.209 g·mol−1
3D model (JSmol)	Interactive image
SMILES Fc1ccc(cc1)C1OC(N)=NC1C
InChI InChI=1S/C10H11FN2O/c1-6-9(14-10(12)13-6)7-2-4-8(11)5-3-7/h2-6,9H,1H3,(H2,12,13) Key:UYKYWISHPDEDRQ-UHFFFAOYSA-N

See also

• 2C-B-aminorex
• 2F-MAR
• 3-Fluorophenmetrazine
• 4C-MAR
• 4-Fluoroamphetamine
• 4,4'-DMAR
• Fluminorex
• MDMAR
• List of aminorex analogues