Betamethasone Valerate EP Impurity E (Betamethasone 21-Valerate)
Impurity reference standard · Betamethasone Valerate
- CAS number
- 2240-28-0
- Molecular formula
- C27H37FO6
- Molecular weight
- 476.58
- Purity
- 95%+
- Appearance
- White to Off-White Solid
- Storage
- -20℃±5℃
About Betamethasone Valerate EP Impurity E (Betamethasone 21-Valerate)
Betamethasone Valerate EP Impurity E (Betamethasone 21-Valerate) is a specified impurity of Betamethasone Valerate. It is registered under CAS number 2240-28-0.
The compound is characterised by its molecular formula C27H37FO6 and a molecular weight of 476.58, with the two-dimensional structure shown above. Because it shares the Betamethasone Valerate scaffold, it is typically used to track process-related and degradation impurities of Betamethasone Valerate 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.
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