| Thyroxine Process Impurity 1 | 19231-06-2 | Ax-IMP576 |
| Thyroxine Intermediate | 69240-57-9 | Ax-IMP575 |
| Rizatriptan Intermediate 2 | 114094-45-0 | Ax-IMP574 |
| Rizatriptan Intermediate 1 | 144035-22-3 | Ax-IMP573 |
| N-Desmethyl Rizatriptan | 144034-84-4 | Ax-IMP572 |
| rac Methotrimeprazine | 851-68-3 | Ax-IMP583 |
| Loperamide Related Compound F | 106900-12-3 | Ax-IMP581 |
| Methotrimeprazine sulfoxide | 7606-29-3; 1188265-45-3 | Ax-IMP582 |
| Perphenazine EP Impurity A | 10078-25-8 | Ax-IMP584 |
| Perphenazine EP Impurity B | 3533-97-9 | Ax-IMP585 |