Cefixime EP Impurity B
Impurity reference standard · Cefixime
- CAS number
- 1335475-19-8
- Molecular formula
- C15H17N5O6S2
- Molecular weight
- 427.46
- Purity
- 95%+
- Appearance
- Off-White Solid
- Storage
- -20℃±5℃
About Cefixime EP Impurity B
Cefixime EP Impurity B is a specified impurity of Cefixime. It is registered under CAS number 1335475-19-8.
The compound is characterised by its molecular formula C15H17N5O6S2 and a molecular weight of 427.46, with the two-dimensional structure shown above. Because it shares the Cefixime scaffold, it is typically used to track process-related and degradation impurities of Cefixime 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 Cefixime impurities
The same parent compound, neighbouring impurity numbers.
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