Clarithromycin EP Impurity B
Impurity reference standard · Clarithromycin
- CAS number
- 299409-85-1
- Molecular formula
- C37H67NO13
- Molecular weight
- 733.93
- Purity
- 95%+
- Appearance
- White to off-white solid
- Storage
- -20℃±5℃
About Clarithromycin EP Impurity B
Clarithromycin EP Impurity B is a specified impurity of Clarithromycin. It is registered under CAS number 299409-85-1.
The compound is characterised by its molecular formula C37H67NO13 and a molecular weight of 733.93, with the two-dimensional structure shown above. Because it shares the Clarithromycin scaffold, it is typically used to track process-related and degradation impurities of Clarithromycin 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 Clarithromycin impurities
The same parent compound, neighbouring impurity numbers.
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