(3-Methyl-1,1-dioxidothietan-3-yl)methanesulfonyl chloride CAS 2091110-80-2
| CAS No. | 2091110-80-2 |
| Molecular Formula | C5H9ClO4S2 |
| Molecular Weight | 232.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(3-Methyl-1,1-dioxidothietan-3-yl)methanesulfonyl chloride (C5H9ClO4S2) contains a carbohydrate-derived structure, a sulfone group, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies (3-Methyl-1,1-dioxidothietan-3-yl)methanesulfonyl chloride (CAS 2091110-80-2), a certified reference material (molecular formula C5H9ClO4S2, MW 232.71 g/mol) for analytical method development and quality control.
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 | C5H9ClO4S2 |
| Molecular Weight | 232.71 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 2 |
Related Methyl Standards
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- Semaglutide impurity 210 (CAS CATO-C4X-2226210)
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