| Febuxostat Amide Impurity | 1239233-86-3 | Ax-IMP637 |
| Choline Fenofibrate | 856676-23-8 | Ax-IMP636 |
| 4-Chloro Bupropion | 1193779-34-8 | Ax-IMP635 |
| 5-Chloro Bupropion | 1193779-48-4 | Ax-IMP634 |
| Amisulpride Impurity A | 26116-12-1 | Ax-IMP633 |
| Levetiracetam Related Compound B | 7682-20-4 | Ax-IMP631 |
| Levetiracetam EP Impurity A | 67118-31-4 | Ax-IMP632 |
| Enalapril EP Impurity B | 82717-96-2 | Ax-IMP628 |
| Enalapril EP Impurity C | 84680-54-6 | Ax-IMP629 |
| Enalapril EP Impurity I | 288-32-4 | Ax-IMP630 |