Nifedipine Impurities

• Nifedipine -EP Impurity A
• 
• Impurity: Nifedipine -EP Impurity A
• Chemical Name: dimethyl 2,6-dimethyl-4-(2-nitrophenyl)pyridine-3,5-dicarboxylate (nitrophenylpyridine analogue)

• Nifedipine Impurities
• 
• Impurity: Nifedipine EP Impurity D
• Chemical Name: Methyl (E)-3-aminobut-2-enoate

• Nifedipine Impurities
• 
• Impurity: Nifedipine Amide Impurity
• Chemical Name: 5-carbamoyl-2,6-dimethyl-4-(2-nitrophenyl)-1,4-dihydropyridine-3-carboxylic acid methyl ester

• Nifedipine Impurities
• 
• Impurity: Nifedipine EP Impurity E
• Chemical Name: 4-(ethylmethylamino)but-2-ynyl (RS)-2-cyclohexyl-2-hydroxy-2-phenylacetateHydrochloride

• Nifedipine Impurities
• 
• Impurity: Nifedipine EP Impurity C
• Chemical Name: 4-(ethylmethylamino)but-2-ynyl (RS)-2-cyclohexyl-2-hydroxy-2-phenylacetateHydrochloride

• Nifedipine Impurities
• 
• Impurity: Nifedipine EP Impurity B
• Chemical Name: 4-(diethylamino)but-2-ynyl 2-hydroxy-2,2-diphenylacetateHydrochloride (Diphenyl analogue of Oxybutynin)

• Nifedipine Amide Impurity
• 
• Impurity: Nifedipine Amide Impurity
• Chemical Name: 5-Carbamoyl-2,6-dimethyl-4-(2-nitrophenyl)-1,4-dihydropyridine-3-carboxylic acid methyl ester

• Nifedipine Impurities
• 
• Impurity: Nifedipine Nitrosophenyl-pyridine analogue
• Chemical Name: 7-[8-(2,2-dimethylbutyryloxy)-2,6-dimethyl-1,2,6,7,8,8a-hexahydro-naphthalene-1-yl]-3,5-dihydroxyheptanoic acid ethyl ester

• Nifedipine Phenylpyridine analogue
• 
• Impurity: Nifedipine Phenylpyridine analogue
• Chemical Name: 7-[8-(2,2-Dimethylbutyryloxy)-2,6-dimethyl-1,2,6,7,8,8a-hexahydro-naphthalene-1-yl]-3,5-dihydroxyheptanoic acid methyl ester

• Nifedipine Impurities
• 
• Impurity: Nifedipine EP Impurity D
• Chemical Name: Methyl-3-aminocrotonate