Torasemide Nitroso Impurity 21
Impurity reference standard · Torasemide Nitroso
- CAS number
- —
- InChIKey
- PYZIACRULOKGJB-UHFFFAOYSA-N
- Molecular formula
- C16H19N5O4S · C6H15N
- Exact mass
- 478.2362 Da
About Torasemide Nitroso Impurity 21
Torasemide Nitroso Impurity 21 is a specified impurity of Torasemide Nitroso. 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 C16H19N5O4S · C6H15N, with the two-dimensional structure shown above. Because it shares the Torasemide Nitroso scaffold, it is typically used to track process-related and degradation impurities of Torasemide Nitroso 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 Torasemide Nitroso Impurity 21 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 Torasemide Nitroso Impurity 21 uniquely identified?
The InChIKey PYZIACRULOKGJB-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 Torasemide Nitroso Impurity 21?
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 Torasemide Nitroso Impurity 21?
Standard packs run from milligram to gram quantities and ship from stock. Larger or custom synthesis requirements are quoted on request.
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.