mdmb-fubica mdmb-fubica mdmb-fubica is an indole-based synthetic cannabinoid that is presumed to be a potent agonist of the cb1 receptor and has been sold online as a designer drug. mdmb-fubicalegal statuslegal status ca: schedule ii de: npsg (industrial and scientific use only) uk: class b illegal in sweden identifiers iupac name methyl (2s)-2-(formamido)-3,3-dimethylbutanoate cas number1971007-91-6 ypubchem cid129522107chemspider57621561uniik53zmb4nr6chemical and physical dataformulac23h25fn2o3molar mass396.462 g·mol−13d model (jsmol)interactive image smiles coc(=o)(nc(=o)c1cn(cc2ccc(f)cc2)c3ccccc13)c(c)(c)c inchi inchi=1s/c23h25fn2o3/c1-23(2,3)20(22(28)29-4)25-21(27)18-14-26(19-8-6-5-7-17(18)19)13-15-9-11-16(24)12-10-15/h5-12,14,20h,13h2,1-4h3,(h,25,27)/t20-/m1/s1key:rvawizigoskpbp-hxuwfjfhsa-n it was first detected by the emcdda in sweden in february 2015. it is often sold in e-liquid form for use in an electronic cigarette. side effects mdmb-fubica's indazole analogue mdmb-fubinaca has been linked to at least 1000 hospitalisations and 40 deaths as a consequence of intoxication as of march 2015. legality mdmb-fubica is banned in sweden.