o-1812 o-1812 o-1812 is an eicosanoid derivative related to anandamide that acts as a potent and highly selective agonist for the cannabinoid receptor cb1, with a ki of 3.4 nm at cb1 and 3870 nm at cb2. unlike most related compounds, o-1812 is metabolically stable against rapid breakdown by enzymes, and produces a cannabinoid-like discriminative effect in rats, which is similar but not identical to that produced by cannabinoid drugs of other chemical classes. o-1812identifiers iupac name (5z,8z,11z,14z)-20-cyano-n--16,16-dimethylicosa-5,8,11,14-tetraenamide cas number342882-77-3 ypubchem cid9823107iuphar/bps732chemspider7998855 nunii5766d7afa7comptox dashboard (epa)dtxsid80745442 chemical and physical dataformulac26h42n2o2molar mass414.634 g·mol−13d model (jsmol)interactive image smiles c(co)nc(=o)ccc/c=c\c/c=c\c/c=c\c/c=c\c(c)(c)ccccc#n inchi inchi=1s/c26h42n2o2/c1-24(23-29)28-25(30)19-15-12-10-8-6-4-5-7-9-11-13-16-20-26(2,3)21-17-14-18-22-27/h4-5,8-11,16,20,24,29h,6-7,12-15,17-19,21,23h2,1-3h3,(h,28,30)/b5-4-,10-8-,11-9-,20-16-/t24-/m1/s1 nkey:wzqhsbkowzoasp-qlzkpenwsa-n n ny (what is this?) (verify)