Impurities
| Impurities Name | CAS No |
| Vildagliptin Amide impurity | 565453-39-6 |
| Vildagliptin dimer | 1036959-23-5 |
| Vildagliptin Chloroacetyl Nitrile (S)-Isomer | 207557-35-5 |
| Vildagliptin Amino Alcohol Impurity | 702-82-9 |
| Vildagliptin Chloroacetyl Amide (S)-Isomer | 214398-99-9 |
| Deferasirox Benzoxazin Impurity | 1218-69-5 |
| Deferasirox Methyl Ester | 1266741-05-2 |