ibipinabant ibipinabant ibipinabant (slv319, bms-646,256) is a drug used in scientific research which acts as a potent and highly selective cb1 antagonist. it has potent anorectic effects in animals, and was researched for the treatment of obesity, although cb1 antagonists as a class have now fallen out of favour as potential anorectics following the problems seen with rimonabant, and so ibipinabant is now only used for laboratory research, especially structure-activity relationship studies into novel cb1 antagonists. slv330, which is a structural analogue of ibipinabant, was reported active in animal models related to the regulation of memory, cognition, as well as in addictive behavior. an atom-efficient synthesis of ibipinabant has been reported. ibipinabantclinical dataatc codenoneidentifiers iupac name 4s-(−)-3-(4-chlorophenyl)-n-methyl-n'--4-phenyl-4,5-dihydro-1h-pyrazole-1-carboxamidine cas number464213-10-3 ypubchem cid9826744chemspider24765166 nuniio5csc6wh1tkeggd09349 ychemblchembl158784 ncomptox dashboard (epa)dtxsid70963572 echa infocard100.158.931 chemical and physical dataformulac24h22cl2n4o2smolar mass501.427 g·mol−13d model (jsmol)interactive image smiles c2cc(cl)ccc2c1=nn(c(nc)=ncs(=o)(=o)c3ccc(cl)cc3)cc1c4ccccc4 inchi inchi=1s/c24h22cl2n4o2s/c1-27-24(28-16-33(31,32)21-13-11-20(26)12-14-21)30-15-22(17-5-3-2-4-6-17)23(29-30)18-7-9-19(25)10-8-18/h2-14,22h,15-16h2,1h3,(h,27,28)/t22-/m1/s1 nkey:bsfkavcgrdmwtk-jochjyfzsa-n n ny (what is this?) (verify)