2-(Chlorosulfonyl)ethyl acetate CAS 78303-71-6
| CAS No. | 78303-71-6 |
| Molecular Formula | C4H7ClO4S |
| Molecular Weight | 186.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-(Chlorosulfonyl)ethyl acetate (CAS 78303-71-6), molecular formula C4H7ClO4S and molecular weight 186.61 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2-(Chlorosulfonyl)ethyl acetate (C4H7ClO4S) is characterized by a carbohydrate-derived structure, a sulfone group, 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 manufactures 2-(Chlorosulfonyl)ethyl acetate 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.
Physical & Chemical Properties
| Molecular Formula | C4H7ClO4S |
| Molecular Weight | 186.61 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.) | 1979 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chlorosulfonyl Standards
- 2-(Chlorosulfonyl)butanoic acid (CAS 1314977-78-0)
- Methyl 3-(Chlorosulfonyl)propanoate (CAS 15441-07-3)
- methyl 2-(chlorosulfonyl)propanoate (CAS 20449-10-9)
- 3-[(chlorosulfonyl)(methyl)amino]propanenitrile (CAS 209971-18-6)
- 3-(Chlorosulfonyl)propanoyl chloride (CAS 3944-67-0)
- 3-[(chlorosulfonyl)(ethyl)amino]propanenitrile (CAS 1064037-92-8)
- 3-[(chlorosulfonyl)(methyl)amino]-2-methylpropanenitrile (CAS 1250149-70-2)
- 3-[(chlorosulfonyl)(methyl)amino]butanenitrile (CAS 1343825-88-6)
Recommended Standards
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- 2-(2-Chloro-6-fluorophenyl)acetimidamide (CAS 780728-19-0)
- 2-Chloro-2-Fluoro-1-Phenyl-1-Propanone (CAS 63017-20-9)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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