 | C4X-17265 | 182009-04-7 | Impurity | |
| Pemetrexed EP Impurity E |
 | C4X-17266 | N/A | Impurity | |
| Pemetrexed EP Impurity B&C |
 | C4X-17267 | 137281-39-1 | Impurity | |
| Pemetrexed Impurity 7 |
 | C4X-17269 | 193281-05-9 | Impurity | |
| Pemetrexed Impurity 9 |
 | C4X-172811 | 74857-22-0 | Impurity | |
| Pentoxifylline EP Impurity K |
 | C4X-172812 | 200556-62-3 | Impurity | |
| Pentoxifylline EP Impurity H |
 | C4X-172813 | 874747-30-5 | Impurity | |
| Pentoxifylline EP Impurity J |
 | C4X-172814 | 6493-07-8 | Impurity | |
| Pentoxifylline Impurity 14 |
 | C4X-172816 | 6493-06-7 | Impurity | |
| Pentoxifylline Impurity 16 |
 | C4X-17284 | 59413-14-8 | Impurity | |
| Pentoxifylline EP Impurity D |
