| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-172626 | 52454-78-1 | Impurity | |
| Pemetrexed Impurity 26 | ||||
| C4X-172628 | N/A | Impurity | |
| Pemetrexed Impurity 28 | ||||
 | C4X-172630 | 155405-81-5 | Impurity | |
| Pemetrexed Impurity 30 | ||||
| C4X-172631 | N/A | Impurity | |
| Pemetrexed Impurity 31 ·1.5H2O | ||||
 | C4X-172633 | 193265-47-3 | Impurity | |
| Pemetrexed Impurity 33 | ||||
| C4X-172643 | 863767-87-7 | Impurity | |
| Pemetrexed Impurity 43 | ||||
| C4X-172644 | N/A | Impurity | |
| Pemetrexed EP Impurity A Disodium salt | ||||
 | 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 | ||||
