3-isopropyl 5-(2-methoxyethyl) 2,6-dimethyl-4-(3-nitrophenyl)pyridine-3,5-dicarboxylate;2,6-Dimethyl-4-(3-nitrophenyl)-,3,5-pyridinedicarboxylic Acid 3-(2-Methoxyethyl) 5-(1-Methylethyl) Ester; 2,6-Dimethyl-4-(3-nitrophenyl)- 3,5-pyridinedicarboxylic Acid 2-Methoxyethyl 1-Methylethyl Ester; USP Nimodipine Related Compound A; Nimodipine EP Impurity A; Nimodipine USP Related Compound A;Dehydro Nimodipine