menabitan menabitan menabitan (inn; sp-204), or menabitan hydrochloride (usan), is a synthetic drug which acts as a potent cannabinoid receptor agonist. it is closely related to natural cannabinoids of the tetrahydrocannabinol (thc) group, differing mainly by its longer and branched side chain, and the replacement of the 9-position carbon with a nitrogen. it was studied as an analgesic in the 1970s and was found to possess antinociceptive effects in both humans and animals but was never marketed. menabitanclinical dataatc codenonelegal statuslegal status us: analogue to a schedule i/ii drug (schedule i) identifiers iupac name pyridin-10-yl] 2-methyl-4-(2-methylpiperidin-1-yl)butanoate cas number83784-21-8 y 58019-50-4 (hcl)pubchem cid189877chemspider164903unii967h1g7v3pcomptox dashboard (epa)dtxsid701003840 chemical and physical dataformulac37h56n2o3molar mass576.866 g·mol−13d model (jsmol)interactive image smiles cccccc(c)c(c)c1=cc2=c(c3=c(ccn(c3)cc#c)c(o2)(c)c)c(=c1)oc(=o)c(c)ccn4ccccc4c inchi inchi=1s/c37h56n2o3/c1-9-11-12-15-26(3)29(6)30-23-33(41-36(40)27(4)17-22-39-20-14-13-16-28(39)5)35-31-25-38(19-10-2)21-18-32(31)37(7,8)42-34(35)24-30/h2,23-24,26-29h,9,11-22,25h2,1,3-8h3key:zwlpjyvimwaedc-uhfffaoysa-n due to its structural similarity to the schedule i/iii drug thc it can be treated as a schedule i drug within the united states legal system under the federal analogue act.