| Zopiclone Process impurity | 43200-82-4 | Ax-IMP1048 |
| Cyproheptadine N-Oxide | 100295-63-4 | Ax-IMP2580 |
| 3-Oxo Atorvastatin | 1391052-00-8 | Ax-IMP1050 |
| Venlafaxine Impurity B | 323176-93-8 | Ax-IMP2578 |
| Venlafaxine impurity E | 93413-70-8; 93413-56-0(HCl); | Ax-IMP2579 |
| Atorvastatin Process Impurity 1 | 887196-28-3 | Ax-IMP1051 |
| Rivaroxaban Impurity A | 931204-39-6 Free base; 931117-61-2 (Acid) | Ax-IMP2576 |
| Atorvastatin Process Impurity 2 | 887196-26-1 | Ax-IMP1052 |
| Rivaroxaban Open-Ring acid Impurity | 482305-98-6 | Ax-IMP2577 |
| Atorvastatin-Phenanthrene | 148127-12-2 | Ax-IMP1053 |