英文别名3-ethyl-5-methyl-4-(2-chlorophenyl)-2-(2,2-diethoxy-ethoxymethyl)-6-methyl-1,4-dihydropyridine-3,5-dicarboxylate; 3-Ethyl-5-methyl-4-(2-Chlorophenyl)-2-(2,2-diethoxy-ethoxymethyl)-6-Methyl-1,4-Dihydro-Pyridine-3,5-Dicarboxylate; Amlodipine Impurity 23; 3-O-ethyl 5-O-methyl 4-(2-chlorophenyl)-2-(2,2-diethoxyethoxymethyl)-6-methyl-1,4-dihydropyridine-3,5-dicarboxylate 
