| Impurity | Name | CAS | MF | MW |
| Azilsartan | Azilsartan 2-Ethoxy-1-[[2'-(4,5-dihydro-5-oxo-1,2,4-oxadiazol-3-yl)biphenyl-4-yl]methyl]benzimidazole-7-carboxylic acid | [147403-03-0] | C25H20N4O5 | 456.45 |
| A | methyl 1-[(2'-carbamoylbiphenyl-4-yl)methyl]-2-ethoxybenzimidazole-7-carboxylate
| no | C25H23N3O4 | 429.47 |
| B | 1-[(2'-carbamoylbiphenyl-4-yl) methyl]-2-ethoxybenzimidazole-7-carboxylic acid
| no | C24H21N3O4 | 415.44 |
| C | (Z)-2-ethoxy-3-((2'-(N'-hydroxycarbamimidoyl)biphenyl-4-yl)methyl)-3H-benzo[d]imidazole-4-carboxylic acid | no | C24H22N4O4 | 430.46 |
| E | ethyl 3-amino-2-((2'-cyanobiphenyl-4-yl)methylamino)benzoate | no | C23H21N3O2 | 371.43 |
| F | ethyl 3-amino-2-((2'-carbamoylbiphenyl-4-yl)methylamino)benzoate | no | C23H23N3O3 | 389.45 |
| G | (Z)-ethyl 3-amino-2-((2'-(N'-hydroxycarbamimidoyl) biphenyl-4-yl)methylamino)benzoate | no | C23H24N4O3 | 404.46 |
| H | (Z)-methyl 3-((2'-(N'-hydroxycarbamimidoyl)biphenyl-4-yl)methyl)-2-oxo-2,3-dihydro-1H-benzo[d]imidazole-4-carboxylate | no | C23H20N4O4 | 416.43 |
| I | methyl 3-((2'-cyanobiphenyl-4-yl)methyl)-2-oxo-2,3-dihydro-1H-benzo[d]imidazole-4-carboxylate | no | C23H17N3O3 | 383.4 |
| J | methyl 2-oxo-3-((2'-(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)biphenyl-4-yl)methyl)-2,3-dihydro-1H-benzo[d]imidazole-4-carboxylate | no | C24H18N4O5 | 442.42 |
| K | 2-oxo-3-((2'-(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl) biphenyl-4-yl)methyl)-2,3-dihydro-1H-benzo[d]imidazole-4-carboxylic acid | no | C23H16N4O5 | 428.4 |
| M | 3-((2'-cyanobiphenyl-4-yl)methyl)-2-ethoxy-3H-benzo[d]imidazole-4-carboxylic acid | no | C24H19N3O3 | 397.43 |
| N | 3-((2'-carbamoylbiphenyl-4-yl)methyl)-2-oxo-2,3-dihydro-1H-benzo[d]imidazole-4-carboxylic acid | no | C22H17N3O4 | 387.39 |
| O | methyl 3-((2'-carbamoylbiphenyl-4-yl)methyl)-2-oxo-2,3-dihydro-1H-benzo[d]imidazole-4-carboxylate | no | C23H19N3O4 | 401.41 |
| P | methyl 3-amino-2-((2'-cyanobiphenyl-4-yl)methylamino)benzoate | no | C22H19N3O2 | 357.41 |
| Q | methyl 3-amino-2-((2'-carbamoylbiphenyl-4-yl)methylamino)benzoate | 147404-75-9 | C22H21N3O3 | 375.42 |
