4-Butyl-2,6-dimethyl-1,4-dihydro-pyridin-3,5-dicarbonsaeure-diaethylester, 4-butyl-1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylate, EINECS 304-412-4, 4-butyl-2,6-dimethyl-1,4-dihydro-pyridine-3,5-dicarboxylic acid diethyl ester, 4-n-butyl-3,5-bis(carboethoxy)-1,4-dihydro-2,6-dimethylpyridine, Diethyl 4-butyl-1,4-dihydro-2,6-dimethylpyridine-3,5-dicarboxylate