7-spiroindanyloxymorphone 7-spiroindanyloxymorphone 7-spiroindanyloxymorphone (siom) is a drug that is used in scientific research. it is a selective δ-opioid agonist. it is a derivative of oxymorphone. 7-spiroindanyloxymorphoneidentifiers iupac name (4ar-(4aα,7aα,8α,9cα))-1',3',7,7a,8,9-hexahydro-3,7a-dihydroxy-12-methylspiro(iminoethano)phenanthrofuran-6,2'-(2h)inden)-5(4ah)-one cas number150380-34-0 npubchem cid5487084chemspider8176808 ycomptox dashboard (epa)dtxsid60933926 chemical and physical dataformulac25h25no4molar mass403.478 g·mol−13d model (jsmol)interactive image smiles cn1ccc234c(=o)c5(cc6=cc=cc=c6c5)c2(1cc7=c3c(=c(c=c7)o)o4)o inchi inchi=1s/c25h25no4/c1-26-9-8-24-19-14-6-7-17(27)20(19)30-22(24)21(28)23(13-25(24,29)18(26)10-14)11-15-4-2-3-5-16(15)12-23/h2-7,18,22,27,29h,8-13h2,1h3/t18?,22-,24-,25+/m0/s1 ykey:yjwdkwrvfjzbcj-ovkcvfhgsa-n y ny (what is this?) (verify)