Morphinanium, 17-(cyclopropylmethyl)-4,5-epoxy-3,14-dihydroxy-17-methyl-6-oxo-, bromide (1:1), (5α)- (9CI, ACI)
Naltrexone methobromide
17-(Cyclopropylmethyl)-3,14-dihydroxy-17-methyl-6-oxo-5alpha-4,5-epoxymorphinan-17-ium bromide