Methotrexate EP Impurity H HBr
Impurity reference standard · Methotrexate
- CAS number
- 67022-39-3 (free base)
- Molecular formula
- C21H25BrN8O5
- Molecular weight
- 549.38
- Purity
- 95%+
- Storage
- 2℃ ~ 8℃
About Methotrexate EP Impurity H HBr
Methotrexate EP Impurity H HBr is a specified impurity of Methotrexate. It is registered under CAS number 67022-39-3.
The compound is characterised by its molecular formula C21H25BrN8O5 and a molecular weight of 549.38, 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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