(-)-Thebaine hydrochloride 850-57-7 Morphinan, 6,7,8,14-tetradehydro-4,5-epoxy-3,6-dimethoxy-17-methyl-, hydrochloride, (5.alpha.)- Morphinan, 6,7,8,14-tetradehydro-4,5.alpha.-epoxy-3,6-dimethoxy-17-methyl-, hydrochloride NSC11428 THEBAINE HYDROCHLORIDE THEBAINE, HYDROCHLORIDE