Lesinurad Impurity 3 CAS 1533519-96-8
| CAS No. | 1533519-96-8 |
| Molecular Formula | C17H16BrN3O2S |
| Molecular Weight | 406.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 406.30 g/mol gives Lesinurad Impurity 3 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Lesinurad Impurity 3 (CAS 1533519-96-8) is a high-purity analytical reference standard with the molecular formula C17H16BrN3O2S and a molecular weight of 406.30 g/mol.
Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, bromine substitution, Lesinurad Impurity 3 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 406.30 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), Lesinurad Impurity 3 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 | C17H16BrN3O2S |
| Molecular Weight | 406.30 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Lesinurad Standards
- Lesinurad Impurity 33 (CAS 1533519-94-6)
- Lesinurad Impurity 4 (CAS 1533519-97-9)
- Lesinurad Impurity 13 (CAS CATO-C4X-147813)
- Lesinurad (CAS 878672-00-5)
- Lesinurad Impurity 10 (CAS 878671-99-9)
- Lesinurad Impurity 17 (CAS CATO-C4X-147817)
- Lesinurad Impurity 8 (CAS 1158970-52-5)
- Lesinurad Impurity 8 (CAS 1158970-49-0)
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