4,5α:4′,5′α-diepoxy-3,3′,14,14′-tetrahydroxy-17,17′-bis(prop-2-enyl)-2,2′-bimorphinanyl-6,6′-di one(2,2′-binaloxone),(4R,4'R,5S,5'S,9R,9'R,17S,17'S)-3,3'-diallyl-5,5',12,12'-tetrahydroxy2,2',3,3',4,4',5,5',6,6',7,7',9,9',18,18'-hexadecahydro-[13,13'-bi(4,12-methanobenzofuro[3,2-e]isoquinoline)]-8,8'(1H,1'H)-dione,Impurity in commercial preparation of Naloxone,Naloxon Impurity
