2,6-Dimethyl-4-(ortho-nitrophenyl)-3,5-pyridinedicarboxylic aciddimenthyl ester 3,5-Pyridinedicarboxylic acid, 2,6-dimethyl-4-(2-nitrophenyl)-, dimethyl ester 4-(2'-Nitrophenyl)-2,6-dimethylpyridine-3,5-dicarboxylic acid dimethyl ester 4-(2-Nitrophenyl)-3,5-bis(carboxymethyl)-2,6-dimethylpyridine 67035-22-7 B 4759 DDNPC Dimethyl 2,6-dimethyl-4-(2-nitrophenyl)-3,5-pyridinedicarboxylate