Cefazolin EP Impurity I（Cefazolin USP RC L）
Impurity reference standard · Cefazolin
- CAS number
- 1675244-99-1
- Molecular formula
- C14H16N8O5S3
- Molecular weight
- 472.52
- Purity
- 95%+
- Appearance
- Off-White Solid
- Storage
- -20℃±5℃
About Cefazolin EP Impurity I（Cefazolin USP RC L）
Cefazolin EP Impurity I（Cefazolin USP RC L） is a specified impurity of Cefazolin. It is registered under CAS number 1675244-99-1.
The compound is characterised by its molecular formula C14H16N8O5S3 and a molecular weight of 472.52, with the two-dimensional structure shown above. Because it shares the Cefazolin scaffold, it is typically used to track process-related and degradation impurities of Cefazolin 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 Cefazolin impurities
The same parent compound, neighbouring impurity numbers.
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