Potassium 4-nitrobenzenesulfonate CAS 4346-49-0
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 4346-49-0 |
| Molecular Formula | C6H5NO5S K |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Potassium 4-nitrobenzenesulfonate (CAS 4346-49-0) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C6H5NO5S K. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C6H5NO5S K |
| Molecular Weight | 242.27 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Potassium Standards
Recommended Standards
- N-(3-cyano-4,5,6,7-tetrahydrobenzo[b]thiophen-2-yl)cyclopropanecarboxamide (CAS 355000-40-7)
- 5-(3-Oxocyclohexyl)pentanenitrile (CAS 898784-95-7)
- 5-Hydroxy-4-(thiophen-3-yl)isoquinolin-1(2H)-one (CAS 656234-37-6)
- Protamine sulfate (CAS 9009-65-8)
- 2-(3-Azetidinyl)-4-methylpyridine (CAS 1236861-44-1)
- Fe(III) MeSoporphyrin IX chloride (CAS 21007-37-4)
- Semaglutide impurity 41 (CAS CATO-C4X-222641)
Why CATO?
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