1,1-Difluoro-2-methoxy-2-oxoethane-1-sulfonic acid CAS 18225-64-4
| CAS No. | 18225-64-4 |
| Molecular Formula | C3H4F2O5S |
| Molecular Weight | 190.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1,1-Difluoro-2-methoxy-2-oxoethane-1-sulfonic acid (C3H4F2O5S) contains a sulfone group, a carboxylic acid group, an ether linkage, fluorine 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.
1,1-Difluoro-2-methoxy-2-oxoethane-1-sulfonic acid (CAS 18225-64-4) is a high-purity analytical reference standard with the molecular formula C3H4F2O5S and a molecular weight of 190.12 g/mol.
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.
As a certified reference material (CRM), 1,1-Difluoro-2-methoxy-2-oxoethane-1-sulfonic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C3H4F2O5S |
| Molecular Weight | 190.12 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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.) | 1962 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
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