Potassium tetrathionate CAS 13932-13-3
| CAS No. | 13932-13-3 |
| Molecular Formula | O6S4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 263.33 g/mol gives Potassium tetrathionate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Potassium tetrathionate (CAS 13932-13-3) is a high-purity analytical reference standard with the molecular formula O6S4K and a molecular weight of 263.33 g/mol.
Potassium tetrathionate (O6S4K) contains a sulfone group. It is notably hygroscopic; these physicochemical properties determine the optimal preparation and storage of its standard solutions.
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.
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 | O6S4 2*K |
| Molecular Weight | 263.33 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 |
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