英文别名2-((2-nitrophenyl)methylene)-3-oxo-butenoicacimethylester; 2-[(2-nitrophenyl)methylene]-3-oxo-butanoicacimethylester; methyl(o-nitrobenzylidene)acetoacetate; methyl2-((2-nitrophenyl)methylene)-3-oxobutenoate; methyl2-(2-nitrobenzylidene)acetoacetate; 2-[(2-Nitrophenyl)Methylene]-3-oxo-butanoic Acid Methyl Ester; 2-NITROBENZYLIDENEMETHYLESTER; 2-Nitrobenzylidenmethylester; 2-Nitrobenzylidenacetessigsaeuremethylester; Methyl 2-(2'-nitrobenzylidene)acetoacetate; Nifedipine Impurity 4 
