Sodium 5-sulfonothioatothiopentane-1-sulfonate CAS 385398-78-7
| CAS No. | 385398-78-7 |
| Molecular Formula | C5H11O5S3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Sodium 5-sulfonothioatothiopentane-1-sulfonate (CAS 385398-78-7), molecular formula C5H11O5S3Na and molecular weight 270.31 g/mol, is a CATO reference standard with documented purity and traceability.
Sodium 5-sulfonothioatothiopentane-1-sulfonate (C5H11O5S3Na) 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.
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 | C5H11O5S3 Na |
| Molecular Weight | 270.31 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 |
Recommended Standards
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- (5-Cyclopropyl-1-methyl-1h-pyrazol-3-yl)methanamine (CAS 1174305-90-8)
- 2-(4-Amino-1-methylpiperidin-4-yl)ethanol (CAS 942205-82-5)
- Ethyl 5-bromobenzofuran-2-carboxylate, 97% (CAS 84102-69-2)
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