o-1871 o-1871 o-1871 is a potent cannabinoid agonist which was invented by billy r martin and raj k razdan at organix inc in 2002. it has a cb1 receptor affinity of 2.0nm and a cb2 receptor affinity of 0.3nm. structurally, o-1871 is a cyclohexylphenol derivative related to cp 47,497, and so is illegal in some jurisdictions where cp 47,497 and its derivatives are banned. however the 3,3-dimethylcyclohexyl substituent of o-1871 can be replaced by various other groups, producing other potent compounds such as the cycloheptyl derivative o-1656 and the 2-adamantyl derivative o-1660, as well as the corresponding 3,5-dichlorophenyl derivative, which are not cyclohexylphenol derivatives. o-1656, cas# 468083-75-2 o-1660, o-1871clinical dataatc codenonelegal statuslegal status banned as cyclohexylphenol derivative (us, uk) identifiers iupac name 2-(3,3-dimethylcyclohexyl)-5-(2-methyloctan-2-yl)benzene-1,3-diol cas number620964-96-7 ypubchem cid10405368chemspider8580806uniisgy2l36fduchemical and physical dataformulac23h38o2molar mass346.555 g·mol−13d model (jsmol)interactive image smiles cc(c1)(c)cccc1c2=c(o)c=c(c(c)(c)cccccc)c=c2o inchi inchi=1s/c23h38o2/c1-6-7-8-9-13-23(4,5)18-14-19(24)21(20(25)15-18)17-11-10-12-22(2,3)16-17/h14-15,17,24-25h,6-13,16h2,1-5h3key:wbspbirkshkqqd-uhfffaoysa-n