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Methotrexate Impurity I
| API Category | Methotrexate impurity |
|---|---|
| Appearance | Hygroscopic Yellow Solid |
| CAT Number | DCTI-C-1413 |
| CAS Number | 66147-29-3 (free base) |
| IUPAC Name | (S)-4-(4-(((2,4-diaminopteridin-6-yl)methyl)(methyl)amino)benzamido)-5-methoxy-5-oxopentanoic acid formate |
| Molecular Formula | C21H24N8O5 (Free base) 22H26N8O7(Salt) |
| Molecular Weight | 468.47 (Free base) 514.50 (Salt) |
| Solubility | DMSO |
| Storage Condition | 2-8°C |
| Synonyms | Methotrexate EP Impurity I; Methotrexate EP Impurity I Formate salt |
