Synonyms: | ent-14S-3-Methoxy-17-MethylMorphinan;Morphinan, 3-Methoxy-17-Methyl-, (9a,13a)-;4bS,8aR,9S)-3-Methoxy-6-7,8,8a,9,10-hexahydro-5H-9,4b-(epiminoethano)phenanthrene (DBR-II);rel-(4βS,8αR,9S)-3-methoxy-11-methyl-6,7,8,8a,9,10-hexahydro-5H-9,4b-(epiminoethano)phenanthrene;(9α,13α)-3-Methoxy-17-methylmorphinan;Morphinan, 3-methoxy-17-methyl-, (9α,13α)-;Dextromethorphan Impurity 4;Dextromethorphan Impurity 4(Dextromethorphan EP Impurity D) |