 | C4X-172823 | N/A | Impurity | |
| Pentoxifylline Impurity 23 |
| C4X-172825 | 57987-84-5 | Impurity | |
| Pentoxifylline Impurity 25 |
| C4X-172826 | N/A | Impurity | |
| Pentoxifylline Impurity 26 |
 | C4X-17284 | 59413-14-8 | Impurity | |
| Pentoxifylline EP Impurity D |
 | C4X-17285 | 77196-87-3 | Impurity | |
| Pentoxifylline EP Impurity E |
 | C4X-17287 | 93079-86-8 | Impurity | |
| Pentoxifylline EP Impurity G |
| C4X-17288 | N/A | Impurity | |
| Pentoxifylline EP Impurity H(DiHCl) |
 | C4X-17289 | 55247-90-0 | Impurity | |
| Pentoxifylline EP Impurity I |
| C4X-17302 | 95296-27-8 | Impurity | |
| Perphenazine Impurity 2 |
 | C4X-17303 | 3533-97-9 | Impurity | |
| Perphenazine EP Impurity B |
