Synonyms: 9α,13α,14α-Morphinan, 3-methoxy-17-methyl- (8CI), (+)-3-Methoxy-17-methylmorphinan, (+)-Dextromethorphan, 3-Methoxy-17-methyl-9α,13α,14α-morphinan, Ba 2666, DEX, Nodex, d-Methorphan,Morphinan, 3-methoxy-17-methyl-, (9α,13α,14α)-, (9α,13α,14α)-3-Methoxy-17-methylmorphinan, Dextromethorphan