| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-172619 | N/A | Impurity | |
| Pemetrexed Impurity 19 | ||||
 | C4X-17262 | 1802552-04-0 | Impurity | |
| Pemetrexed EP Impurity B | ||||
| C4X-172620 | N/A | Impurity | |
| Pemetrexed Impurity 20 | ||||
 | 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-172624 | 869791-47-9 | Impurity | |
| Pemetrexed Impurity 24 | ||||
| C4X-172625 | N/A | Impurity | |
| Pemetrexed Impurity 25 | ||||
| C4X-172626 | 52454-78-1 | Impurity | |
| Pemetrexed Impurity 26 | ||||
| C4X-172627 | N/A | Impurity | |
| Pemetrexed Impurity 27 | ||||
