Not Less Than - 95%
1,4-dihydro-2,6-dimethyl-4-(3-nitrophenyl)-, 3-methyl 5-propyl ester; 3,5-Pyridinedicarboxylic acid, 1,4-dihydro-2,6-dimethyl-4-(3-nitrophenyl)-, methyl propyl ester (9CI); 3,5-Pyridinedicarboxylic acid,