Montelukast Impurity 42
Impurity reference standard · Montelukast
- CAS number
- 149968-10-5
- Molecular formula
- C20H16ClNO
- Molecular weight
- 321.80
- Purity
- 95%+
- Appearance
- Off-White to Yellow Solid
- Storage
- -20℃±5℃
About Montelukast Impurity 42
Montelukast Impurity 42 is a specified impurity of Montelukast. It is registered under CAS number 149968-10-5.
The compound is characterised by its molecular formula C20H16ClNO and a molecular weight of 321.80, with the two-dimensional structure shown above. Because it shares the Montelukast scaffold, it is typically used to track process-related and degradation impurities of Montelukast 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 Montelukast impurities
The same parent compound, neighbouring impurity numbers.
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