Promethazine Impurity 40
Impurity reference standard · Promethazine
- CAS number
- 98025-87-7
- Molecular formula
- C4H11Cl2N
- Molecular weight
- 144.04
- Purity
- 95%+
- Appearance
- Pale Yellow Solid
- Storage
- -20℃±5℃
About Promethazine Impurity 40
Promethazine Impurity 40 is a specified impurity of Promethazine. It is registered under CAS number 98025-87-7.
The compound is characterised by its molecular formula C4H11Cl2N and a molecular weight of 144.04, with the two-dimensional structure shown above. Because it shares the Promethazine scaffold, it is typically used to track process-related and degradation impurities of Promethazine 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 Promethazine impurities
The same parent compound, neighbouring impurity numbers.
Need this standard, or a related one?
Send the compound name, CAS number or a structure file — we confirm availability, pack size and lead time, usually within one business day.