β-methyl-2c-b β-methyl-2c-b β-methyl-2c-b (bmb) is a recreational designer drug with psychedelic effects. it is a structural isomer of dob but is considerably less potent, having around half the potency of 2c-b itself with activity starting at a dosage of around 20 mg. it has two possible enantiomers but their activity has not been tested separately. β-methyl-2c-blegal statuslegal status uk: in general unscheduled identifiers iupac name 2-(4-bromo-2,5-dimethoxyphenyl)propan-1-amine cas number52432-70-9 ypubchem cid6452643chemspider4955068comptox dashboard (epa)dtxsid80966857 chemical and physical dataformulac11h16brno2molar mass274.158 g·mol−13d model (jsmol)interactive image smiles cc(cn)c1=cc(=c(c=c1oc)br)oc inchi inchi=1s/c11h16brno2/c1-7(6-13)8-4-11(15-3)9(12)5-10(8)14-2/h4-5,7h,6,13h2,1-3h3key:yjjfyokegofnfa-uhfffaoysa-n