5-Bromothiophene-2-sulfonyl chloride 5-bromo-thiophene-2-sulfonyl chloride 5-bromothiophenesulphonyl chloride 5-bromothiophene-2-sulphonyl chloride 5-bromothiophenesulfonyl chloride 5-bromo-2-thiophenesulfonyl chloride 5-bromothiophen-2-sulfonyl chloride 55854-46-1 CAS 55854-46-1

Purity 97%+In StockPharmaceutical Standards
CAS No.55854-46-1
Molecular FormulaC4H6BrClO2S2
Molecular Weight265.58 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Bromothiophene-2-sulfonyl chloride
5-bromo-thiophene-2-sulfonyl chloride
5-bromothiophenesulphonyl chloride
5-bromothiophene-2-sulphonyl chloride
5-bromothiophenesulfonyl chloride
5-bromo-2-thiophenesulfonyl chloride
5-bromothiophen-2-sulfonyl chloride
55854-46-1 CAS 55854-46-1 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.

5-Bromothiophene-2-sulfonyl chloride 5-bromo-thiophene-2-sulfonyl chloride 5-bromothiophenesulphonyl chloride 5-bromothiophene-2-sulphonyl chloride 5-bromothiophenesulfonyl chloride 5-bromo-2-thiophenesulfonyl chloride 5-bromothiophen-2-sulfonyl chloride 55854-46-1 (CAS 55854-46-1) is a high-purity analytical reference standard with the molecular formula C4H6BrClO2S2 and a molecular weight of 265.58 g/mol.

The molecular framework of 5-Bromothiophene-2-sulfonyl chloride 5-bromo-thiophene-2-sulfonyl chloride 5-bromothiophenesulphonyl chloride 5-bromothiophene-2-sulphonyl chloride 5-bromothiophenesulfonyl chloride 5-bromo-2-thiophenesulfonyl chloride 5-bromothiophen-2-sulfonyl chloride 55854-46-1 (C4H6BrClO2S2) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine 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 5-Bromothiophene-2-sulfonyl chloride 5-bromo-thiophene-2-sulfonyl chloride 5-bromothiophenesulphonyl chloride 5-bromothiophene-2-sulphonyl chloride 5-bromothiophenesulfonyl chloride 5-bromo-2-thiophenesulfonyl chloride 5-bromothiophen-2-sulfonyl chloride 55854-46-1 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 FormulaC4H6BrClO2S2
Molecular Weight265.58 g/mol
Purity97%+
StorageStore at room temperature, 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)1.0
CAS Registry Year (est.)1972
Halogen ContentCl/Br-containing
Sulfur Atoms2

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