 | C4X-140511 | 3034-41-1 | Impurity | |
| Metronidazole Impurity 11 |
 | C4X-140512 | N/A | Impurity | |
| Metronidazole Impurity 12 |
 | C4X-140514 | 73829-38-6 | Impurity | |
| Metronidazole Impurity 14 |
 | C4X-140515 | 110578-73-9 | Impurity | |
| Metronidazole Impurity 15 |
 | C4X-140516 | 138169-63-8 | Impurity | |
| Metronidazole Impurity 16 |
 | C4X-140518 | 113385-77-6 | Impurity | |
| Metronidazole Impurity 18 |
 | C4X-14052 | 3034-38-6 | Impurity | |
| Metronidazole EP Impurity B |
| C4X-140520 | 19765-12-9 | Impurity | |
| Metronidazole Impurity 20 |
 | C4X-140522 | 542-05-2 | Impurity | |
| Metronidazole Impurity 22 |
| C4X-140523 | N/A | Impurity | |
| Metronidazole impurity 23 |
