Fexofenadine Impurity 21
Impurity reference standard · Fexofenadine
- CAS number
- 162096-54-0
- Molecular formula
- C14H16O3
- Molecular weight
- 232.28
- Purity
- 95%+
- Appearance
- Pale Yellow to Pale Beige Solid
- Storage
- -20℃±5℃
About Fexofenadine Impurity 21
Fexofenadine Impurity 21 is a specified impurity of Fexofenadine. It is registered under CAS number 162096-54-0.
The compound is characterised by its molecular formula C14H16O3 and a molecular weight of 232.28, with the two-dimensional structure shown above. Because it shares the Fexofenadine scaffold, it is typically used to track process-related and degradation impurities of Fexofenadine 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 Fexofenadine impurities
The same parent compound, neighbouring impurity numbers.
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