Chemical Name: (4R,4aS,7aR,12bS)-4a,9-dihydroxy-3-nitroso-2,3,4,4a,5,6-hexahydro-1H-4,12-methanobenzofuro[3,2-e]isoquinolin-7(7aH)-one
Synonym: N-Nitroso Naltrexone EP Impurity B ; N-Nitroso Noroxymorphone
Smile: O=C1[C@@](OC2=C(O)C=CC3=C24)([H])[C@@]54CCN(N=O)[C@@](C3)([H])[C@]5(O)CC1