Methyl 2-(chlorosulfonyl)-5-methylbenzoate CAS 1153230-09-1

Purity 97%+In StockPharmaceutical Standards
CAS No.1153230-09-1
Molecular FormulaC9H9ClO4S
Molecular Weight248.68 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Methyl 2-(chlorosulfonyl)-5-methylbenzoate CAS 1153230-09-1 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 248.68 g/mol gives Methyl 2-(chlorosulfonyl)-5-methylbenzoate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Methyl 2-(chlorosulfonyl)-5-methylbenzoate (CAS 1153230-09-1), molecular formula C9H9ClO4S and molecular weight 248.68 g/mol, is a CATO reference standard with documented purity and traceability.

Methyl 2-(chlorosulfonyl)-5-methylbenzoate (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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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 Methyl 2-(chlorosulfonyl)-5-methylbenzoate 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.)1989
Halogen ContentCl-containing
Sulfur Atoms1

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