155536-45-1 6,14-Ethenomorphinan-7-methanol, 18,19-dihydro, 4,5-epoxy-3-hydroxy-6-methoxy-alpha,17-dimethyl-alpha-propyl-, hydrochloride, (5alpha,7alpha(R))- 6,14-Ethenomorphinan-7-methanol, 18,19-dihydro, 4,5-epoxy-3-hydroxy-6-methoxy-alpha,17-dimethyl-alpha-propyl-, hydrochloride, (alphaR,5alpha,7alpha)- Dihydroetorphine hydrochloride