Nifedipine Impurity H

Uses

1,?4-?Dihydro-?2,?6-?dimethyl-?4-?(2-?nitrophenyl)?-?3,?5-?pyridinedicarboxylic acid 3-?methyl ester is used as a reactant in the preparation of 1,?4-?dihydropyridinecarboxylic acids.