| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-172628 | N/A | Impurity | |
| Pemetrexed Impurity 28 | ||||
| C4X-172629 | 146943-43-3 | Impurity | |
| Pemetrexed Impurity 29 | ||||
 | C4X-17263 | 1802552-16-4 | Impurity | |
| Pemetrexed EP Impurity C | ||||
 | C4X-172630 | 155405-81-5 | Impurity | |
| Pemetrexed Impurity 30 | ||||
| C4X-172631 | N/A | Impurity | |
| Pemetrexed Impurity 31 ·1.5H2O | ||||
 | C4X-172632 | 155405-79-1 | Impurity | |
| Pemetrexed Impurity 32 | ||||
 | C4X-172633 | 193265-47-3 | Impurity | |
| Pemetrexed Impurity 33 | ||||
| C4X-172634 | 1320346-43-7 | Impurity | |
| Pemetrexed Impurity 34 | ||||
| C4X-172635 | 204257-65-8 | Impurity | |
| Pemetrexed Impurity | ||||
 | C4X-172636 | 937370-10-0 | Impurity | |
| Pemetrexed Impurity | ||||
