Synonyms: 1,4-Dihydro-2,6-dimethyl-4-(1-methylethyl)-3,5-pyridinedicarboxylic acid diethyl ester;1,4-Dihydro-2,6-dimethyl-4-isopropyl-3,5-pyridinedicarboxylic acid diethyl ester;2,6-Dimethyl-4-isopropyl-1,4-dihydro-3,5-pyridinedicarboxylic acid diethyl ester;2,6-Dimethyl-4-isopropyl-1,4-dihydropyridine-3,5-dicarboxylic acid diethyl ester