4-(Difluoromethyl)benzenesulfonyl Chloride CAS 1263179-09-4

Purity 97%+In StockPharmaceutical Standards
CAS No.1263179-09-4
Molecular FormulaC7H5ClF2O2S
Molecular Weight226.63 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-(Difluoromethyl)benzenesulfonyl Chloride CAS 1263179-09-4 chemical structure

Description

The occurrence of 4-(Difluoromethyl)benzenesulfonyl Chloride is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 4-(Difluoromethyl)benzenesulfonyl Chloride (CAS 1263179-09-4), a certified reference material (molecular formula C7H5ClF2O2S, MW 226.63 g/mol) for analytical method development and quality control.

Based on its molecular formula C7H5ClF2O2S, 4-(Difluoromethyl)benzenesulfonyl 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 226.63 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).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC7H5ClF2O2S
Molecular Weight226.63 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.)1990
Halogen ContentF/Cl-containing
Sulfur Atoms1

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