o-806 o-806 o-806 is a drug which is a cannabinoid derivative that is used in scientific research. it is described as a mixed agonist/antagonist at the cannabinoid receptor cb1, meaning that it acts as an antagonist when co-administered alongside a more potent cb1 agonist, but exhibits weak partial agonist effects when administered by itself. o-806identifiers iupac name (6ar)-3-(6-bromohex-2-ynyl)-6,6,9-trimethyl-6a,7,10,10a-tetrahydrobenzochromen-1-ol pubchem cid10549140chemspider26001356 ychemical and physical dataformulac22h27bro2molar mass403.360 g·mol−13d model (jsmol)interactive image smiles c3c1c(cc=c3c)c(c)(c)oc(c2)c1c(o)cc2cc#ccccbr inchi inchi=1s/c22h27bro2/c1-15-9-10-18-17(12-15)21-19(24)13-16(8-6-4-5-7-11-23)14-20(21)25-22(18,2)3/h9,13-14,17-18,24h,5,7-8,10-12h2,1-3h3/t17-,18-/m1/s1 ykey:qhfrovgtwnpdow-qztjidsgsa-n y (verify)