 | C4X-14048 | N/A | Impurity | |
| Reserpine impurity 8 |
| C4X-14049 | 1446557-12-5 | Impurity | |
| Reserpine Impurity 9 |
 | C4X-14051 | 696-23-1 | Impurity | |
| Metronidazole EP Impurity A |
 | C4X-140510 | 56750-04-0 | Impurity | |
| Metronidazole Impurity 10 |
 | 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 |
