(5alpha,6alpha)-7,8-Didehydro-4,5-epoxy-3-methoxy-17-methylmorphinan-6-ol 130320-48-8 Aspirin-codeine Morphinan-6-ol, 7,8-didehydro-4,5-epoxy-3-methoxy-17-methyl-, (5alpha,6alpha)-, mixt. with 2-(acetyloxy)benzoic acid co-Codaprin