(5alpha,6beta)-7,8-Didehydro-4,5-epoxy-3-methoxy-17-methylmorphinan-6-ol 509-64-8 6-Isocodeine EINECS 208-101-3 Isocodeine Morphinan-6-beta-ol, 7,8-didehydro-4,5-alpha-epoxy-3-methoxy-17-methyl- Morphinan-6-ol, 7,8-didehydro-4,5-epoxy-3-methoxy-17-methyl-, (5alpha,6beta)- (9CI) NSC 76434