Cetirizine EP Impurity B
Impurity reference standard · Cetirizine
- CAS number
- 1000690-91-4
- Molecular formula
- C19H23Cl3N2O2
- Molecular weight
- 417.76
- Purity
- 95%+
- Appearance
- White to off-white solid
- Storage
- 2℃ ~ 8℃
About Cetirizine EP Impurity B
Cetirizine EP Impurity B is a specified impurity of Cetirizine. It is registered under CAS number 1000690-91-4.
The compound is characterised by its molecular formula C19H23Cl3N2O2 and a molecular weight of 417.76, with the two-dimensional structure shown above. Because it shares the Cetirizine scaffold, it is typically used to track process-related and degradation impurities of Cetirizine 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: 2℃ ~ 8℃.
Available from stock in milligram to gram quantities; larger or custom synthesis requirements are quoted on request.
Other Cetirizine impurities
The same parent compound, neighbouring impurity numbers.
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