| CAS No. | 1936729-45-1 |
| Molecular Formula | C4H6ClFO4S |
| Molecular Weight | 204.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
The occurrence of Ethyl 2-(chlorosulfonyl)-2-fluoroacetate is closely related to a carbohydrate-derived structure, a sulfone group, fluorine/chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Ethyl 2-(chlorosulfonyl)-2-fluoroacetate (CAS 1936729-45-1) is a high-purity analytical reference standard with the molecular formula C4H6ClFO4S and a molecular weight of 204.60 g/mol.
Ethyl 2-(chlorosulfonyl)-2-fluoroacetate (C4H6ClFO4S) contains a carbohydrate-derived structure, a sulfone group, fluorine/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.
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.
CATO manufactures Ethyl 2-(chlorosulfonyl)-2-fluoroacetate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
| Molecular Formula | C4H6ClFO4S |
| Molecular Weight | 204.60 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.) | 1996 |
| Halogen Content | F/Cl-containing |
| Sulfur Atoms | 1 |