4B-MAR

4'-Bromo-4-methylaminorex (4B-MAR, 4'-Br-4-MAR) is a designer drug from the substituted aminorex family, first definitively identified in Austria in January 2022. Its pharmacological activity has not been reported, but it is believed to have stimulant effects.^[1]

4'-Bromo-4-methylaminorex

Identifiers
IUPAC name 4-methyl-5-(4-bromophenyl)-4,5-dihydro-1,3-oxazol-2-amine
CAS Number	3063572-03-9 Y
PubChem CID	165361748
ChemSpider	129395373
Chemical and physical data
Formula	C10H11BrN2O
Molar mass	255.115 g·mol−1
3D model (JSmol)	Interactive image
SMILES CC1C(OC(=N1)N)C2=CC=C(C=C2)Br
InChI InChI=1S/C10H11BrN2O/c1-6-9(14-10(12)13-6)7-2-4-8(11)5-3-7/h2-6,9H,1H3,(H2,12,13) Key:TUHDNALAVIDYHT-UHFFFAOYSA-N

See also

• 2C-B-aminorex
• 2F-MAR
• 4C-MAR
• 4,4'-DMAR
• 4'-Fluoro-4-methylaminorex
• 4-Methylaminorex
• MDMAR
• 3-Bromomethylphenidate
• 4-Bromoamphetamine
• 4-Bromomethcathinone
• RTI-51