| Brexpiprazole Process Impurity 4 | 1359159-59-3 | Ax-IMP1467 |
| Clomiphene impurity A | 74056-26-1(HCl); 19957-52-9(Base); 97800-39-0 | Ax-IMP1456 |
| Clomiphene impurity B | 796-77-0 | Ax-IMP1457 |
| Clomiphene Impurity D | NA | Ax-IMP1458 |
| Clomiphene Impurity E | NA | Ax-IMP1459 |
| Clomiphene Impurity F | NA | Ax-IMP1460 |
| Doxepin N-oxide | 22684-91-9 | Ax-IMP1455 |
| Fosfomycin Process Impurity 1 | 108549-23-1 | Ax-IMP1451 |
| Fosfomycin Process Impurity 2 | 364631-72-1 | Ax-IMP1452 |
| Fosfomycin Process Impurity 3 | 1404217-43-1 | Ax-IMP1453 |