3,4-Dihydro-2H-1,5-benzodioxepine-7-sulfonyl chloride CAS 321309-38-0

Purity 97%+In StockPharmaceutical Standards
CAS No.321309-38-0
Molecular FormulaC9H9ClO4S
Molecular Weight248.68 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3,4-Dihydro-2H-1,5-benzodioxepine-7-sulfonyl chloride CAS 321309-38-0 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 248.68 g/mol gives 3,4-Dihydro-2H-1,5-benzodioxepine-7-sulfonyl chloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

3,4-Dihydro-2H-1,5-benzodioxepine-7-sulfonyl chloride (CAS 321309-38-0) is a high-purity analytical reference standard with the molecular formula C9H9ClO4S and a molecular weight of 248.68 g/mol.

3,4-Dihydro-2H-1,5-benzodioxepine-7-sulfonyl chloride (C9H9ClO4S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.

CATO manufactures 3,4-Dihydro-2H-1,5-benzodioxepine-7-sulfonyl chloride under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC9H9ClO4S
Molecular Weight248.68 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)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentCl-containing
Sulfur Atoms1

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