o-2545 o-2545 o-2545 is an analgesic cannabinoid derivative created by organix inc. for use in scientific research. unlike most cannabinoids discovered to date, it is water-soluble, which gives it considerable advantages over many related cannabinoids. it has high affinity for both cb1 and cb2 receptors, with ki values of 1.5 nm at cb1 and 0.32 nm at cb2. o-2545legal statuslegal status in general: unscheduled identifiers iupac name (6ar,10ar)-6a,7,10,10a-tetrahydro-3--6,6,9-trimethyl-6h-dibenzopyran-1-ol cas number874745-42-3 ychemspider22938186 ncomptox dashboard (epa)dtxsid30635364 chemical and physical dataformulac26h36n2o2molar mass408.586 g·mol−13d model (jsmol)interactive image smiles cc1=cc2(oc3c(c(cc(c3)c(ccccn4cncc4)(c)c)o)2c1)(c)c inchi inchi=1s/c26h36n2o2/c1-18-8-9-21-20(14-18)24-22(29)15-19(16-23(24)30-26(21,4)5)25(2,3)10-6-7-12-28-13-11-27-17-28/h8,11,13,15-17,20-21,29h,6-7,9-10,12,14h2,1-5h3/t20-,21-/m1/s1 nkey:rzgswwcabdvbgx-nhcuhlmssa-n n ny (what is this?) (verify)