Posaconazole Impurity 203
Impurity reference standard · Posaconazole
- CAS number
- —
- Molecular formula
- C21H23N3O4S
- Molecular weight
- 413.49
- Purity
- 95%+
About Posaconazole Impurity 203
Posaconazole Impurity 203 is a specified impurity of Posaconazole. It has no single publicly registered CAS number, so it is defined by the structure and molecular formula below.
The compound is characterised by its molecular formula C21H23N3O4S and a molecular weight of 413.49, with the two-dimensional structure shown above. Because it shares the Posaconazole scaffold, it is typically used to track process-related and degradation impurities of Posaconazole 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.
Available from stock in milligram to gram quantities; larger or custom synthesis requirements are quoted on request.
Other Posaconazole impurities
The same parent compound, neighbouring impurity numbers.
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