Lapatinib Impurity 37
Impurity reference standard · Lapatinib
- CAS number
- 1268997-70-1
- Molecular formula
- C22H21ClN4O4S
- Molecular weight
- 472.94
- Purity
- 95%+
About Lapatinib Impurity 37
Lapatinib Impurity 37 is a specified impurity of Lapatinib. It is registered under CAS number 1268997-70-1.
The compound is characterised by its molecular formula C22H21ClN4O4S and a molecular weight of 472.94, with the two-dimensional structure shown above. Because it shares the Lapatinib scaffold, it is typically used to track process-related and degradation impurities of Lapatinib 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 Lapatinib impurities
The same parent compound, neighbouring impurity numbers.
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