Sodium tetrathionate dihydrate CAS 13721-29-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 13721-29-4 |
| Molecular Formula | O6S4 2*Na 2*H2O |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Sodium tetrathionate dihydrate (CAS 13721-29-4) is a pharmaceutical standards certified reference material from CATO. Molecular formula: O6S4 2*Na 2*H2O. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | O6S4 2*Na 2*H2O |
| Molecular Weight | 265.24 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Freely soluble in water |
| Stability | Hygroscopic; reseal immediately after opening |
| CAS Registry Year (est.) | 1960 |
| Sulfur Atoms | 4 |
Related Sodium Standards
Recommended Standards
- CAS 27982-81-6 (CAS 27982-81-6)
- 5-Bromo-3,4'-bipyridine (CAS 106047-38-5)
- 3-{1-[(3-chlorophenyl)methyl]-1H-1,3-benzodiazol-2-yl}-1,2-dihydropyridin-2-one (CAS 860649-50-9)
- (5E)-5-[(1H-Indol-3-yl)methylidene]-3-(prop-2-en-1-yl)-2-sulfanylidene-1,3-thiazolidin-4-one (CAS 92437-37-1)
- Empagliflozin Impurity 41 (CAS CATO-C4X-106541)
- Butylphthalide Impurity 53 (CAS 122654-49-3)
- Semaglutide impurity 237 (CAS CATO-C4X-2226237)
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 13829788188 / jacky.chen@cato-chem.com