Rifampicin EP Impurity B
Impurity reference standard · Rifampicin
- CAS number
- 125833-03-6
- Molecular formula
- C43H58N4O13
- Molecular weight
- 838.94
- Purity
- 95%+
- Appearance
- Red to Dark Red Solid
- Storage
- 2℃ ~ 8℃
About Rifampicin EP Impurity B
Rifampicin EP Impurity B is a specified impurity of Rifampicin. It is registered under CAS number 125833-03-6.
The compound is characterised by its molecular formula C43H58N4O13 and a molecular weight of 838.94, with the two-dimensional structure shown above. Because it shares the Rifampicin scaffold, it is typically used to track process-related and degradation impurities of Rifampicin 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.
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