| Azithromycin Impurity M | 765927-71-7 | Ax-IMP081 |
| Azithromycin Impurity N | 612069-25-7 | Ax-IMP080 |
| Azithromycin Impurity L | 90503-06-3 | Ax-IMP079 |
| Azithromycin Impurity J | 117693-41-1 | Ax-IMP078 |
| Azithromycin Impurity H | 612069-30-4 | Ax-IMP076 |
| Azithromycin Impurity I | 172617-84-4 | Ax-IMP077 |
| Azithromycin Impurity G | 612069-31-5 | Ax-IMP070 |
| Azithromycin Impurity F | 612069-28-0 | Ax-IMP069 |
| Azithromycin Impurity E | 612069-27-9 | Ax-IMP068 |
| Azithromycin Impurity B | 307974-61-4 | Ax-IMP066 |