2-Iodoethyl isopropyl 1,4-dihydropyridine-2,6-dimethyl-4-(3-nitrophenyl)pyridine-3,5-dicarboxylate 3,5-Pyridinedicarbolxylic acid, 1,4-dihydro-2,6-dimethyl-4-(3-nitrophenyl)-, 2-iodoethyl 1-methylethyl ester 97856-31-0 Bay P 8857 Bay-P 8857