Fexofenadine Impurity 31
Impurity reference standard · Fexofenadine
- CAS number
- —
- Molecular formula
- C33H39NO4
- Molecular weight
- 513.67
- Purity
- 95%+
About Fexofenadine Impurity 31
Fexofenadine Impurity 31 is a specified impurity of Fexofenadine. 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 C33H39NO4 and a molecular weight of 513.67, 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.
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.
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.