Lesinurad Impurity 32 CAS 1158970-37-6
| CAS No. | 1158970-37-6 |
| Molecular Formula | C17H16N4O2S |
| Molecular Weight | 340.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Lesinurad Impurity 32 (CAS 1158970-37-6), molecular formula C17H16N4O2S and molecular weight 340.40 g/mol, is a CATO reference standard with documented purity and traceability.
Lesinurad Impurity 32 (C17H16N4O2S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Lesinurad Impurity 32 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C17H16N4O2S |
| Molecular Weight | 340.40 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Lesinurad Standards
- Lesinurad Impurity 2 (CAS 1384208-36-9)
- Lesinurad Impurity 9 (CAS 1533519-85-5)
- Lesinurad Impurity 3 (CAS 1158970-76-3)
- Lesinurad Impurity 12 (CAS CATO-C4X-147812)
- Lesinurad Impurity 6 (CAS CATO-C4X-14786)
- Lesinurad Impurity 14 (CAS 1533519-93-5)
- Lesinurad Impurity 7 (CAS CATO-C4X-14787)
- Lesinurad Impurity 1 (CAS 1533519-98-0)
Recommended Standards
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Why CATO?
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