英文别名2'-nitrobenzylideneacetoacetic acid methyl ester; Butanoic acid, 2-[(2-nitrophenyl)methylene]-3-oxo-, methyl ester, (2Z)-; Methyl 2-[(2-Nitrophenyl)methylidene]-3-oxobutanoate; Nifedipine Impurity 56; (Z)-Methyl 2-(2-nitrobenzylidene)-3-oxobutanoate 
