| Chemical Structure | CAT No. | CAS | Item Group | Purity |
|---|---|---|---|---|
 | C4X-13864 | 39978-57-9 | Impurity | |
| Raltitrexed Impurity 4 | ||||
 | C4X-13865 | 4282-31-9 | Impurity | |
| Raltitrexed Impurity 5 | ||||
 | C4X-13866 | 6317-37-9 | Impurity | |
| Raltitrexed Impurity 6 | ||||
 | C4X-13867 | 1042419-89-5 | Impurity | |
| Raltitrexed Impurity 7 | ||||
| C4X-13868 | 1235852-48-8 | Impurity | |
| Raltitrexed Impurity 8 | ||||
| C4X-13869 | 132462-57-8 | Impurity | |
| Raltitrexed Impurity 9 | ||||
| C4X-138710 | N/A | Impurity | |
| Paricalcitol Impurity 10 | ||||
 | C4X-138711 | 1227926-70-6 | Impurity | |
| Paricalcitol Impurity 11 | ||||
 | C4X-138712 | 1263504-45-5 | Impurity | |
| Paricalcitol Impurity 12 | ||||
| C4X-138713 | N/A | Impurity | |
| Paricalcitol Impurity 13 | ||||
