Article · Wikipedia archive · Last revised Jul 17, 2026

4B-MAR

4'-Bromo-4-methylaminorex 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.

Last revised
Jul 17, 2026
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≈ 1 min
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4'-Bromo-4-methylaminorex
Identifiers
  • 4-methyl-5-(4-bromophenyl)-4,5-dihydro-1,3-oxazol-2-amine
CAS Number
PubChem CID
ChemSpider
Chemical and physical data
FormulaC10H11BrN2O
Molar mass255.115 g·mol−1
3D model (JSmol)
  • CC1C(OC(=N1)N)C2=CC=C(C=C2)Br
  • 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

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

See also

See also

References

References

  1. Seibert E, Kunert O, Pferschy-Wenzig EM, Schmid MG (September 2022). "Characterization of Three Novel 4-Methylaminorex Derivatives Applied as Designer Drugs". Molecules. 27 (18). Basel, Switzerland: 5770. doi:10.3390/molecules27185770. PMC 9503756. PMID 36144500.