Sodium 8-hydroxy-6-sulfonaphthalen-2-olate CAS 83732-66-5
| CAS No. | 83732-66-5 |
| Molecular Formula | C10H7O5S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Sodium 8-hydroxy-6-sulfonaphthalen-2-olate (CAS 83732-66-5), a certified reference material (molecular formula C10H7O5SNa, MW 262.21 g/mol) for analytical method development and quality control.
Sodium 8-hydroxy-6-sulfonaphthalen-2-olate (C10H7O5SNa) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. 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).
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.
CATO manufactures Sodium 8-hydroxy-6-sulfonaphthalen-2-olate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C10H7O5S Na |
| Molecular Weight | 262.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 6-(2,5-Dimethylthiophen-3-yl)-1-(propan-2-yl)-1h-pyrazolo[3,4-b]pyridine-4-carboxylic acid (CAS 924404-98-8)
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- 4-Amino-5-(5-bromo-2-fluorophenyl)-4H-1,2,4-triazole-3-thiol (CAS 1152520-73-4)
- 2-(1-fluorocyclobutyl)ethan-1-amine (CAS 1803593-31-8)
- 3-Hydroxymandelic acid (CAS 17119-15-2)
- 2-Methoxy-N-(4-phenylcyclohexyl)acetamide (CAS 1241173-33-0)
- 3-(Difluoromethyl)tetrahydrofuran-3-amine hydrochloride (CAS 2742653-30-9)
- 2-Amino-1-(4-bromophenyl)butane Hydrochloride (CAS 1379972-38-9)
- Diethyl 2-(4-bromo-2-nitrophenyl)malonate (CAS 199328-34-2)
- Fragment-[3-31]-Semaglutide (CAS CATO-C4X-2226113)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com