Ethyl 2-chloro-5-(chlorosulfonyl)-4-fluorobenzoate CAS 1155076-35-9

Purity 97%+In StockPharmaceutical Standards
CAS No.1155076-35-9
Molecular FormulaC9H7Cl2FO4S
Molecular Weight301.12 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Ethyl 2-chloro-5-(chlorosulfonyl)-4-fluorobenzoate CAS 1155076-35-9 chemical structure

Description

The occurrence of Ethyl 2-chloro-5-(chlorosulfonyl)-4-fluorobenzoate 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 Ethyl 2-chloro-5-(chlorosulfonyl)-4-fluorobenzoate (CAS 1155076-35-9), a certified reference material (molecular formula C9H7Cl2FO4S, MW 301.12 g/mol) for analytical method development and quality control.

Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system, Ethyl 2-chloro-5-(chlorosulfonyl)-4-fluorobenzoate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 301.12 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 Ethyl 2-chloro-5-(chlorosulfonyl)-4-fluorobenzoate 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 FormulaC9H7Cl2FO4S
Molecular Weight301.12 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry
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 ContentF/Cl-containing
Sulfur Atoms1

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