Promethazine Impurity 71
Impurity reference standard · Promethazine
- CAS number
- —
- InChIKey
- MVYGJILIIXGCIV-UHFFFAOYSA-N
- Molecular formula
- C4H9ClN2O
- Molecular weight
- 136.58
- Exact mass
- 172.0170 Da
About Promethazine Impurity 71
Promethazine Impurity 71 is a specified impurity of Promethazine. 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 C4H9ClN2O and a molecular weight of 136.58, 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 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.
Frequently asked questions
Does Promethazine Impurity 71 come with a certificate of analysis?
Yes. Every pack ships with a certificate of analysis plus the supporting analytical data — HNMR, MS and HPLC or GC traces.
How is Promethazine Impurity 71 uniquely identified?
The InChIKey MVYGJILIIXGCIV-UHFFFAOYSA-N identifies the structure unambiguously, so it can be matched against your own registry or a public database.
Is a structure file available for Promethazine Impurity 71?
Yes. The two-dimensional structure is drawn on this page from the SMILES record, and the SMILES or a molfile can be supplied on request.
What pack sizes are available for Promethazine Impurity 71?
Standard packs run from milligram to gram quantities and ship from stock. 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.