1-Chloroethanesulfonyl Chloride CAS 3518-66-9

Purity 97%+In StockPharmaceutical Standards
CAS No.3518-66-9
Molecular FormulaC2H4Cl2O2S
Molecular Weight163.02 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-Chloroethanesulfonyl Chloride CAS 3518-66-9 chemical structure

Description

1-Chloroethanesulfonyl Chloride (C2H4Cl2O2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. 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-Chloroethanesulfonyl Chloride (CAS 3518-66-9), molecular formula C2H4Cl2O2S and molecular weight 163.02 g/mol, is a CATO reference standard with documented purity and traceability.

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 FormulaC2H4Cl2O2S
Molecular Weight163.02 g/mol
Purity97%+
StorageStore at 2-8°C, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)0.0
CAS Registry Year (est.)1958
Halogen ContentCl-containing
Sulfur Atoms1

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