 | C4X-143424 | 448904-47-0 | Impurity | |
| Desvenlafaxine (O-Desmethyl Venlafaxine) Succinate |
 | C4X-143425 | N/A | Impurity | |
| Venlafaxine Impurity 25 |
 | C4X-14343 | 130198-05-9 | Impurity | |
| Venlafaxine EP Impurity C HCl |
 | C4X-143434 | 93413-76-4 | Impurity | |
| Venlafaxine Impurity 34 |
| C4X-143435 | N/A | Impurity | |
| Venlafaxine Impurity 35 |
| C4X-143437 | N/A | Impurity | |
| Venlafaxine Impurity 37 |
| C4X-143438 | 93413-44-6 | Impurity | |
| Venlafaxine Impurity 38 |
| C4X-143439 | 93413-46-8 | Impurity | |
| Venlafaxine Impurity 39 |
 | C4X-14344 | 93413-90-2 | Impurity | |
| Venlafaxine EP Impurity D HCl |
| C4X-143440 | 149289-30-5 | Impurity | |
| Venlafaxine EP Impurity D |
