1,4-Dichloro-2-(methylsulfonyl)benzene CAS 66640-63-9

Purity 97%+In StockPharmaceutical Standards
CAS No.66640-63-9
Molecular FormulaC7H6Cl2O2S
Molecular Weight225.09 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1,4-Dichloro-2-(methylsulfonyl)benzene CAS 66640-63-9 chemical structure

Description

The occurrence of 1,4-Dichloro-2-(methylsulfonyl)benzene is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 1,4-Dichloro-2-(methylsulfonyl)benzene (CAS 66640-63-9), a certified reference material (molecular formula C7H6Cl2O2S, MW 225.09 g/mol) for analytical method development and quality control.

Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 1,4-Dichloro-2-(methylsulfonyl)benzene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 225.09 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.

As a certified reference material (CRM), 1,4-Dichloro-2-(methylsulfonyl)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 FormulaC7H6Cl2O2S
Molecular Weight225.09 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.)1976
Halogen ContentCl-containing
Sulfur Atoms1

Related Dichloro Standards

Recommended Standards

Why CATO?