Metamizole EP Impurity E Sodium Salt
Impurity reference standard · Metamizole
- CAS number
- 129-89-5
- Molecular formula
- C12H14N3NaO4S
- Molecular weight
- 319.31
- Purity
- 95%+
- Appearance
- White to off-white solid
- Storage
- 2℃ ~ 8℃
About Metamizole EP Impurity E Sodium Salt
Metamizole EP Impurity E Sodium Salt is a specified impurity of Metamizole. It is registered under CAS number 129-89-5.
The compound is characterised by its molecular formula C12H14N3NaO4S and a molecular weight of 319.31, with the two-dimensional structure shown above. Because it shares the Metamizole scaffold, it is typically used to track process-related and degradation impurities of Metamizole 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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