4-Bromo-1-chloro-2-methanesulfonylbenzene CAS 346729-65-5

Purity 97%+In StockPharmaceutical Standards
CAS No.346729-65-5
Molecular FormulaC7H6BrClO2S
Molecular Weight269.54 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Bromo-1-chloro-2-methanesulfonylbenzene CAS 346729-65-5 chemical structure

Description

The occurrence of 4-Bromo-1-chloro-2-methanesulfonylbenzene is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 4-Bromo-1-chloro-2-methanesulfonylbenzene (CAS 346729-65-5), a certified reference material (molecular formula C7H6BrClO2S, MW 269.54 g/mol) for analytical method development and quality control.

Based on its molecular formula C7H6BrClO2S, 4-Bromo-1-chloro-2-methanesulfonylbenzene contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 269.54 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.

As a certified reference material (CRM), 4-Bromo-1-chloro-2-methanesulfonylbenzene 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.

Physical & Chemical Properties

Molecular FormulaC7H6BrClO2S
Molecular Weight269.54 g/mol
Purity97%+
StorageStore at room temperature, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; 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.)2025
Halogen ContentCl/Br-containing
Sulfur Atoms1

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