 | C4X-115411 | 4271-30-1 | Impurity | |
| Methotrexate EP Impurity K(Folic Acid EP Impurity A) |
 | C4X-115414 | N/A | Impurity | |
| Methotrexate Impurity 14 |
| C4X-115415 | N/A | Impurity | |
| Methotrexate EP Impurity L |
 | C4X-115416 | 2410-93-7 | Impurity | |
| Methotrexate EP Impurity C |
| C4X-115417 | 52853-40-4 | Impurity | |
| Methotrexate Impurity 17 HBr |
| C4X-115418 | N/A | Impurity | |
| Methotrexate Impurity 18 |
 | C4X-115419 | 52980-68-4 | Impurity | |
| Methotrexate EP Impurity L |
 | C4X-11542 | 54-62-6 | Impurity | |
| Methotrexate EP Impurity B |
| C4X-115420 | 71074-44-7 | Impurity | |
| Methotrexate Dimethylamide |
| C4X-115423 | N/A | Impurity | |
| Methotrexate Impurity 23 |
