162828-18-4 3-Pyridinecarboxylic acid, 5-cyano-2,6-dimethyl-4-(2-nitrophenyl)-, methyl ester Methyl 3-cyano-2,6-dimethyl-4-(2-nitrophenyl)pyridine-5-carboxylate Methyl 5-cyano-2,6-dimethyl-4-(2-nitrophenyl)-3-pyridinecarboxylate