Sildenafil Impurity 261
Impurity reference standard · Sildenafil
- CAS number
- —
- Molecular formula
- C17H18Cl2N4O2
- Molecular weight
- 381.26
- Purity
- 95%+
About Sildenafil Impurity 261
Sildenafil Impurity 261 is a specified impurity of Sildenafil. 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 C17H18Cl2N4O2 and a molecular weight of 381.26, with the two-dimensional structure shown above. Because it shares the Sildenafil scaffold, it is typically used to track process-related and degradation impurities of Sildenafil 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 Sildenafil impurities
The same parent compound, neighbouring impurity numbers.
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