| CAS No. | 385398-80-1 |
| Molecular Formula | C6H13O5S3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Sodium (5-Sulfonatopentyl) Methanethiosulfonate (CAS 385398-80-1) is a high-purity analytical reference standard with the molecular formula C6H13O5S3Na and a molecular weight of 284.34 g/mol.
Sodium (5-Sulfonatopentyl) Methanethiosulfonate (C6H13O5S3Na) contains a carbohydrate-derived structure, a sulfone group. It is notably hygroscopic, the carboxyl group imparts weak acidity; 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.
| Molecular Formula | C6H13O5S3 Na |
| Molecular Weight | 284.34 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 0.5 |
| CAS Registry Year (est.) | 2025 |
| Sulfur Atoms | 3 |