1,4-Dihydro-2,6-dimethyl-4-(m-nitrophenyl)-3,5-pyridinedicarboxylic acid di-2-(methyl(phenylmethyl)amino)ethyl ester 3,5-Pyridinedicarboxylic acid, 1,4-dihydro-2,6-dimethyl-4-(3-nitrophenyl)-, bis(2-(methyl(phenylmethyl)amino)ethyl) ester 71791-90-7 XE 820 XE820