英文别名Nifedipine Impurity 2; Nifedipine EP Impurity B; 2,6-Ntp; 2,6-Dimethyl-4-(2-nitrosophenyl)-3,5-pyridinedicarboxylic Acid 3,5-Dimethyl Ester; 2,6-Dimethyl-3,5-dicarbomethoxy-4-(2-nitrosophenyl)pyridine; 4-(2-Nitrosophenyl)-2,6-dimethyl-3,5-dimethoxycarbonylpyridine; Dimethyl 2,6-dimethyl-4-(2-nitrosophenyl)-3,5-pyridinedicarboxylate; Nifedipine Nitrosophenylpyridine Analog; 2,6-dimethyl-4-(2'-nitrosophenyl)-3,5-pyridinedicarboxylic acid dimethyl ester; Dehydronitroso Nifedipine; Dehydronitrosonifedipine; Nifedipine impurity B 
