Tadalafil EP Impurity H
Impurity reference standard · Tadalafil
- CAS number
- 1978322-98-3
- Molecular formula
- C22H19N3O6
- Molecular weight
- 421.40
- Purity
- 95%+
- Appearance
- Yellow Powder
- Storage
- -20℃±5℃
About Tadalafil EP Impurity H
Tadalafil EP Impurity H is a specified impurity of Tadalafil. It is registered under CAS number 1978322-98-3.
The compound is characterised by its molecular formula C22H19N3O6 and a molecular weight of 421.40, with the two-dimensional structure shown above. Because it shares the Tadalafil scaffold, it is typically used to track process-related and degradation impurities of Tadalafil 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 Tadalafil impurities
The same parent compound, neighbouring impurity numbers.
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