Methotrexate Impurity 31
Impurity reference standard · Methotrexate
- CAS number
- —
- Molecular formula
- C13H16N2O5
- Molecular weight
- 280.28
- Purity
- 95%+
- Storage
- 2℃-8℃
About Methotrexate Impurity 31
Methotrexate Impurity 31 is a specified impurity of Methotrexate. It has no single publicly registered CAS number, so it is defined by the structure and molecular formula below.
The compound is characterised by its molecular formula C13H16N2O5 and a molecular weight of 280.28, with the two-dimensional structure shown above. Because it shares the Methotrexate scaffold, it is typically used to track process-related and degradation impurities of Methotrexate during method development, forced degradation and stability studies.
Each pack ships with a certificate of analysis reporting purity of 95%+ together with the supporting analytical data — HNMR, MS and HPLC or GC traces — so the material can be released straight into your own QC workflow. Recommended storage: 2℃-8℃.
Available from stock in milligram to gram quantities; larger or custom synthesis requirements are quoted on request.
Other Methotrexate impurities
The same parent compound, neighbouring impurity numbers.
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