Potassium thiosulfate hydrate CAS 13446-67-8
| CAS No. | 13446-67-8 |
| Molecular Formula | O3S2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Potassium thiosulfate hydrate (CAS 13446-67-8), a certified reference material (molecular formula O3S2KH2O, MW 169.23 g/mol) for analytical method development and quality control.
The molecular framework of Potassium thiosulfate hydrate (O3S2KH2O) is characterized by a sulfone group. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | O3S2 2*K H2O |
| Molecular Weight | 169.23 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Freely soluble in water |
| Stability | Hygroscopic; reseal immediately after opening |
| CAS Registry Year (est.) | 1960 |
| Sulfur Atoms | 2 |
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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