Synonyms: trans-Dihydrocodeine hydrochloride;14-alpha-Morphinan-6-alpha-ol, 4,5-alpha-epoxy-3-methoxy-17-methyl-, hydrochloride;Morphinan-6-ol, 4,5-epoxy-3-methoxy-17-methyl-, (5-alpha,6-alpha,14-alpha)-, hydrochloride;trans-Dihydrocodeine HCl;LS-91978;16206-76-1