Synonyms: Morphinan-3,6-diol,7,8-didehydro-4,5-epoxy-17-(2-propenyl)-, di-3-pyridinecarboxylate (ester), (5a,6a)- (9CI); Morphinan-3,6a-diol, 17-allyl-7,8-didehydro-4,5a-epoxy-, dinicotinate (ester)(8CI); Normorphine, N-allyl-, dinicotinate (6CI,7CI); N-Allylnormorphinedinicotinate; Nalorphine dinicotinate; Nimelan