17-(Cyclopropylmethyl)-4,5alpha-epoxy-6-methylenemorphinan-3,14-diol, , hydrochloride 55096-26-9 58895-64-0 Morphinan-3,14-diol, 17-(cyclopropylmethyl)-4,5-epoxy-6-methylene-, hydrochloride, (5alpha)- Nalmefene hydrochloride