| Sr.No. | Chemical Name | CAS No. | Used for | |
| Amlodipine Besylate | ||||
| 1 | Phthaloyl amldodipine
(4-(2-Chlorophenyl)-2-[[2-(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)ethoxy]methyl]-1,4-dihydro-6-methyl-3,5-pyridinedicarboxylic Acid 3-Ethyl 5-Methyl Ester) |
88150-62-3 | Imp A as per EP | |
| 2 | N-[2-[(Methylamino)carbonyl]benzoyl] Amlodipine
(4-(2-Chlorophenyl)-1,4-dihydro-2-methyl-6-[[2-[[2-[(methylamino)carbonyl]benzoyl]amino]ethoxy]methyl]-5-pyridinedicarboxylic Acid 5-Ethyl 3-Methyl Ester); (3-Ethyl 5-Methyl (4RS)-4-(2-Chlorophenyl)-6-methyl-2-[[2-[[2-(methylcarbamoyl)benzoyl]amino]ethoxy]methyl]-1,4-dihydropyridine-3,5-dicarboxylate) |
721958-72-1 | Imp B as per EP | |
| 3 | Dehydro Amlodipine
2-[(2-Aminoethoxy)methyl]-4-(2-chlorophenyl)-6-methyl-3,5-pyridinedicarboxylic Acid 3-Ethyl 5-Methyl |
113994-41-5 | Imp D as per EP | |
| 4 | Amlodipine Diethyl Ester
(2-[(2-Aminoethoxy)methyl]-4-(2-chlorophenyl)-1,4-dihydro-6-methyl-3,5-pyridinedicarboxylic Acid 3,5-Diethyl Ester; 3-Ethyl 5-Ethyl 4-(2-Chlorophenyl)-6-methyl-2-[[2- [(2-aminoethoxy)methyl]-1,4-dihydropyridine-3,5-dicarboxylate) |
140171-65-9 | Imp E as per EP | |
| 5 | Amlodipine Dimethyl Ester
(2-[(2-Aminoethoxy)methyl]-4-(2-chlorophenyl)-1,4-dihydro-6-methyl-3,5-pyridinedicarboxylic Acid 3,5-dimethyl Ester; 3-Methyl 5-Methyl 4-(2-Chlorophenyl)-6-methyl-2-[[2- [(2-aminoethoxy)methyl]-1,4-dihydropyridine-3,5-dicarboxylate) |
140171-66-0 | Imp F as per EP | |
| 6 | Dimethyl 4-(2-Chlorophenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate
(4-(2-Chlorophenyl)-1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylic Acid 3,5-Dimethyl Ester; 4-(2-Chlorophenyl)-3,5-di(methoxycarbonyl)-2,6-dimethyl-1,4-dihydropyridine) |
43067-01-2 | Imp G as per EP | |
| 7 | 2-Carboxybenzoyl Amlodipine
(2-[[2-[(2-Carboxybenzoyl)amino]ethoxy]methyl]-4-(2-chlorophenyl)-1,4-dihydro-6-methyl-3,5-pyridinedicarboxylic Acid 3-Ethyl 5-Methyl Ester) |
318465-73-5 | Imp H as per EP | |
| 8 | (R)-Amlodipine
((4R)-2-[(2-Aminoethoxy)methyl]-4-(2-chlorophenyl)-1,4-dihydro-6-methyl-3,5-pyridinedicarboxylic Acid 3-Ethyl 5-Methyl Ester) |
103129-81-3 | R-Isomer impurity | |
