Synonyms: Dihydrothebaine;Thebaine, dihydro-;8,14-Dihydrothebaine;delta(sup 6)-Dihydrothebaine;EINECS 209-216-1;(5alpha)-6,7-Didehydro-4,5-epoxy-3,6-dimethoxy-17-methylmorphinan;LS-149302;4,5alpha-Epoxy-3,6-dimethoxy-17-methyl-6-morphinen;(5R,9R,13S,14R)-4,5-Epoxy-3,6-dimethoxy-N-methyl-6-morphinen;Morphinan, 6,7-didehydro-4,5-alpha-epoxy-3,6-dimethoxy-17-methyl-;(5R,9R,13S,14R)-4,5-Epoxy-3,6-dimethoxy-N-methyl-6-morphinen [IUPAC];Morphinan, 6,7-didehydro-4,5-alpha-epoxy-3,6-dimethoxy-17-methyl- (8CI);Morphinan, 6,7-didehydro-4,5-epoxy-3,6-dimethoxy-17-methyl- (5-alpha,14-xi)-;Morphinan, 6,7-didehydro-4,5-epoxy-3,6-dimethoxy-17-methyl- (5-alpha,14-xi)- (9CI);1385-04-2;561-25-1;57281-79-5