173401-70-2

Spiro[2-cyclohexene-1,2'(1'H)-cyclopenta[b][1]benzopyran]-5',7'-dicarboxaldehyde,3',3'a,9',9'a-tetrahydro-6',8'-dihydroxy-6,9'a-dimethyl-3-(1-methylethyl)-9'-(2-methylpropyl)-,[2'R-[2'a(R*),3'ab,9'a,9'ab]]-