3,5-Pyridinedicarboxylic acid, 1,4-dihydro-4-(2-chlorophenyl)-2,6-dimethyl-, ethyl 2-propenyl ester 39561-98-3 Ethyl 2-propenyl 2,6-dimethyl-4-(2-chlorophenyl)-1,4-dihydro-3,5-pyridinedicarboxylate