1-Bromo-2-ethoxy-4-methanesulfonyl-benzene CAS 1403329-87-2

Purity 97%+In StockPharmaceutical Standards
CAS No.1403329-87-2
Molecular FormulaC9H11BrO3S
Molecular Weight279.15 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-Bromo-2-ethoxy-4-methanesulfonyl-benzene CAS 1403329-87-2 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 279.15 g/mol gives 1-Bromo-2-ethoxy-4-methanesulfonyl-benzene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

1-Bromo-2-ethoxy-4-methanesulfonyl-benzene (CAS 1403329-87-2), molecular formula C9H11BrO3S and molecular weight 279.15 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 1-Bromo-2-ethoxy-4-methanesulfonyl-benzene (C9H11BrO3S) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. 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. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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), 1-Bromo-2-ethoxy-4-methanesulfonyl-benzene 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 FormulaC9H11BrO3S
Molecular Weight279.15 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
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.)1991
Halogen ContentBr-containing
Sulfur Atoms1

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