(5alpha)-17-(Cyclopropylmethyl)-4,5-epoxy-3,14-dihydroxymorphinan-6-one hydrazone 73674-86-9 Morphinan-6-one, 17-(cyclopropylmethyl)-4,5-epoxy-3,14-dihydroxy-, hydrazone, (5alpha)- Naltrexazone Naltrexone hydrazone