(5alpha)-17-(Cyclopropylmethyl)-4,5-epoxy-14-hydroxy-3-((2-hydroxybenzoyl)oxy)morphinan-6-one 110189-11-2 Morphinan-6-one, 17-(cyclopropylmethyl)-4,5-epoxy-14-hydroxy-3-((2-hydroxybenzoyl)oxy)-, (5alpha)- Naltrexone-3-salicylate