Sodium 4-Hydroxynaphthalene-2-sulfonate CAS 13935-00-7
| CAS No. | 13935-00-7 |
| Molecular Formula | C10H7O4S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Sodium 4-Hydroxynaphthalene-2-sulfonate (C10H7O4SNa) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Sodium 4-Hydroxynaphthalene-2-sulfonate (CAS 13935-00-7), molecular formula C10H7O4SNa and molecular weight 246.21 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Sodium 4-Hydroxynaphthalene-2-sulfonate 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 | C10H7O4S Na |
| Molecular Weight | 246.21 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.) | 1960 |
| Sulfur Atoms | 1 |
Related Sodium Standards
- 1-Hydroxynaphthalene-2-sulfonyl chloride (CAS 102879-07-2)
- 1-(1-Hydroxynaphthalene-2-carbonyl)pyrrolidine-2-carboxylic acid (CAS 1103247-90-0)
- 8-Hydroxynaphthalene-1-sulfonic acid (CAS 117-22-6)
- 8-Hydroxynaphthalene-1,6-disulfonic acid (CAS 117-43-1)
- 5-Hydroxynaphthalene-1-Sulfonic Acid (CAS 117-59-9)
- 7-Hydroxynaphthalene-1-sulfonic acid (CAS 132-57-0)
- Sodium 6-hydroxynaphthalene-2-Sulfonate (CAS 135-76-2)
- 7-Hydroxynaphthalene-1,3-disulfonic acid xpotassium salt (CAS 13846-08-7)
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- 1,2,5-Tribromo-4-chloro-3-methylbenzene (CAS 2379321-91-0)
- cis-3-Amino-4-methoxy-pyrrolidine-1-carboxylic acid tert-butyl ester hydrochloride (CAS 1993218-08-8)
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