Prednisone Impurity 1
Impurity reference standard · Prednisone
- CAS number
- —
- Molecular formula
- C21H24O5 · C21H26O6
- Molecular weight
- 356.42 · 374.43
- Purity
- 95%+
- Appearance
- Light Yellow to Yellow Solid
- Storage
- -20℃±5℃
About Prednisone Impurity 1
Prednisone Impurity 1 is a specified impurity of Prednisone. 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 C21H24O5 · C21H26O6 and a molecular weight of 356.42 · 374.43. Because it shares the Prednisone scaffold, it is typically used to track process-related and degradation impurities of Prednisone 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.
Frequently asked questions
What purity does Prednisone Impurity 1 ship at?
Prednisone Impurity 1 is supplied at 95%+, as stated on the certificate of analysis issued with each pack.
Does Prednisone Impurity 1 come with a certificate of analysis?
Yes. Every pack ships with a certificate of analysis plus the supporting analytical data — HNMR, MS and HPLC or GC traces.
What pack sizes are available for Prednisone Impurity 1?
Standard packs run from milligram to gram quantities and ship from stock. Larger or custom synthesis requirements are quoted on request.
How should Prednisone Impurity 1 be stored?
Recommended storage: -20℃±5℃.
Other Prednisone impurities
The same parent compound, neighbouring impurity numbers.
Need this standard, or a related one?
Send the compound name, CAS number or a structure file — we confirm availability, pack size and lead time, usually within one business day.