mdmb-5br-inaca mdmb-5br-inaca mdmb-5br-inaca is an indazole-3-carboxamide derivative which has been sold as a designer drug. surprisingly it appears to produce cannabinoid activity despite the lack of a "tail" group at the indazole 1-position, but is of relatively low potency and has been encountered being misrepresented as other illicit drugs such as mdma. mdmb-5br-inacaidentifiers iupac name methyl (2s)-2--3,3-dimethylbutanoate chemical and physical dataformulac15h18brn3o3molar mass368.231 g·mol−13d model (jsmol)interactive image smiles o=c(oc)(nc(=o)c1nc2ccc(br)cc21)c(c)(c)c inchi inchi=1s/c15h18brn3o3/c1-15(2,3)12(14(21)22-4)17-13(20)11-9-7-8(16)5-6-10(9)18-19-11/h5-7,12h,1-4h3,(h,17,20)(h,18,19)/t12-/m1/s1key:qgevexpjokfman-gfccvegcsa-n