sec-Butylsulfonyl chloride CAS 4375-72-8

Purity 97%+In StockPharmaceutical Standards
CAS No.4375-72-8
Molecular FormulaC4H9ClO2S
Molecular Weight156.63 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

sec-Butylsulfonyl chloride CAS 4375-72-8 chemical structure

Description

As a certified reference material (CRM), sec-Butylsulfonyl chloride 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.

sec-Butylsulfonyl chloride (CAS 4375-72-8), molecular formula C4H9ClO2S and molecular weight 156.63 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, sec-Butylsulfonyl chloride is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 156.63 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.

Physical & Chemical Properties

Molecular FormulaC4H9ClO2S
Molecular Weight156.63 g/mol
Purity97%+
StorageStore at 2-8°C, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityContains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)0.0
CAS Registry Year (est.)1958
Halogen ContentCl-containing
Sulfur Atoms1

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