英文别名1,3-Dimethyl 2-[4-(methoxycarbonyl)-2-nitrophenyl]propanedioate; Intedanib Impurity 3; dimethyl 2-(4-methoxycarbonyl-2-nitrophenyl)propanedioate; methyl 4-(di(methoxycarbonyl)methyl)-3-nitrobenzoate; 2-[4-(Methoxycarbonyl)-2-nitrophenyl]propanedioic acid 1,3-dimethyl ester; [4-(methoxycarbonyl)-2-nitrophenyl]-propanedioic acid dimethyl ester; Nintedanib Impurity 12 
