英文别名:(+)-cis-1,3,4,9,10,10a-Hexahydro-11-methyl-2H-10,4a-iminoethanophenanthren-6-ol;(+)-N-Methylmorphinan-3-ol;13-alpha,14-alpha-morphinan-3-ol,17-methyl-9-alph;17-Methylmorphinan-3-ol;Dextromethorphan Impurity B(EP);Dextromethorphan EP Impurity B;Dextromethorphan EP Impurity B HBr;Dextromethorphan Hydrobromide ImpurityⅡ:Dextromethorphan EP Impurity B