Methylprednisolone EP Impurity A
Impurity reference standard · Methylprednisolone
- CAS number
- 91523-05-6
- Molecular formula
- C22H28O5
- Molecular weight
- 372.45
- Purity
- 95%+
- Appearance
- Off-White Solid
- Storage
- -20℃±5℃
About Methylprednisolone EP Impurity A
Methylprednisolone EP Impurity A is a specified impurity of Methylprednisolone. It is registered under CAS number 91523-05-6.
The compound is characterised by its molecular formula C22H28O5 and a molecular weight of 372.45, with the two-dimensional structure shown above. Because it shares the Methylprednisolone scaffold, it is typically used to track process-related and degradation impurities of Methylprednisolone 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: -20℃±5℃.
Available from stock in milligram to gram quantities; larger or custom synthesis requirements are quoted on request.
Other Methylprednisolone impurities
The same parent compound, neighbouring impurity numbers.
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