| CAS No. | 4025-77-8 |
| Molecular Formula | C2H2Cl2O3S |
| Molecular Weight | 177.01 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
The molecular framework of 4025-77-8 (Chlorosulphonyl)acetyl chloride Acetyl chloride, 2-(chlorosulfonyl)- Acetyl chloride, (chlorosulfonyl)- EINECS 223-693-3 (C2H2Cl2O3S) is characterized by a sulfone group, a carboxylic acid group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies 4025-77-8 (Chlorosulphonyl)acetyl chloride Acetyl chloride, 2-(chlorosulfonyl)- Acetyl chloride, (chlorosulfonyl)- EINECS 223-693-3 (CAS 4025-77-8), a certified reference material (molecular formula C2H2Cl2O3S, MW 177.01 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.
As a certified reference material (CRM), 4025-77-8 (Chlorosulphonyl)acetyl chloride Acetyl chloride, 2-(chlorosulfonyl)- Acetyl chloride, (chlorosulfonyl)- EINECS 223-693-3 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.
| Molecular Formula | C2H2Cl2O3S |
| Molecular Weight | 177.01 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 |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |