| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-172621 | 1001-19-0 | Impurity | |
| Pemetrexed Impurity 21 | ||||
 | C4X-172622 | 1075-59-8 | Impurity | |
| Pemetrexed Impurity 22 | ||||
 | C4X-172623 | 1265908-59-5 | Impurity | |
| Pemetrexed EP Impurity D Trisodium salt | ||||
 | 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 | ||||
