4-Bromo-2-methoxybenzene-1-sulfonyl chloride CAS 145915-29-3

Purity 97%+In StockPharmaceutical Standards
CAS No.145915-29-3
Molecular FormulaC7H6BrClO3S
Molecular Weight285.54 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Bromo-2-methoxybenzene-1-sulfonyl chloride CAS 145915-29-3 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 285.54 g/mol gives 4-Bromo-2-methoxybenzene-1-sulfonyl chloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4-Bromo-2-methoxybenzene-1-sulfonyl chloride (CAS 145915-29-3), molecular formula C7H6BrClO3S and molecular weight 285.54 g/mol, is a CATO reference standard with documented purity and traceability.

4-Bromo-2-methoxybenzene-1-sulfonyl chloride (C7H6BrClO3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system. It is notably hygroscopic, 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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.

CATO manufactures 4-Bromo-2-methoxybenzene-1-sulfonyl chloride 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 FormulaC7H6BrClO3S
Molecular Weight285.54 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1998
Halogen ContentCl/Br-containing
Sulfur Atoms1

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