1'-Methoxy-3',4'-didehydro-1,2,7,8,1',2'-hexahydro-psi,psi-caroten-1-ol 1191-20-4 3,4-Didehydro-1,1',2,2',7',8'-hexahydro-1'-hydroxy-1-methoxy-psi,psi-carotene Hydroxyspheroidene