Fexofenadine EP Impurity E
Impurity reference standard · Fexofenadine
- CAS number
- 115-46-8
- Molecular formula
- C18H21NO
- Molecular weight
- 267.37
- Purity
- 95%+
- Appearance
- White to off-white solid
- Storage
- -20℃±5℃
About Fexofenadine EP Impurity E
Fexofenadine EP Impurity E is a specified impurity of Fexofenadine. It is registered under CAS number 115-46-8.
The compound is characterised by its molecular formula C18H21NO and a molecular weight of 267.37, 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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