4-Fluoro-3,5-dimethylbenzenesulfonyl chloride CAS 122263-78-9

Purity 97%+In StockPharmaceutical Standards
CAS No.122263-78-9
Molecular FormulaC8H8ClFO2S
Molecular Weight222.66 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Fluoro-3,5-dimethylbenzenesulfonyl chloride CAS 122263-78-9 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.

4-Fluoro-3,5-dimethylbenzenesulfonyl chloride (CAS 122263-78-9), molecular formula C8H8ClFO2S and molecular weight 222.66 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C8H8ClFO2S, 4-Fluoro-3,5-dimethylbenzenesulfonyl chloride contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 222.66 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).

As a certified reference material (CRM), 4-Fluoro-3,5-dimethylbenzenesulfonyl chloride 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 FormulaC8H8ClFO2S
Molecular Weight222.66 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.)1991
Halogen ContentF/Cl-containing
Sulfur Atoms1

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