 | C4X-100342 | N/A | Impurity | |
| Azithromycin CP Impurity Q |
 | C4X-100344 | 2365312-76-9 | Impurity | |
| Azithromycin Impurity 44 |
| C4X-100345 | 2365312-75-8 | Impurity | |
| Azithromycin Impurity 45 |
| C4X-100347 | N/A | Impurity | |
| Azithromycin Impurity 47 |
 | C4X-10035 | 612069-27-9 | Impurity | |
| Azithromycin EP Impurity E |
 | C4X-10036 | 620169-47-3 | Impurity | |
| Azithromycin EP Impurity C |
 | C4X-10037 | 76801-85-9 | Impurity | |
| Azithromycin EP Impurity A |
 | C4X-10038 | 612069-30-4 | Impurity | |
| Azithromycin EP Impurity H |
 | C4X-10039 | 172617-84-4 | Impurity | |
| Azithromycin EP Impurity I |
| C4X-10041 | N/A | Impurity | |
| Besifloxacin Impurity 1 |
