4-Chloro-5-(methoxycarbonyl)thiophene-2-boronic acid CAS 2096331-56-3

Purity 97%+In StockPharmaceutical Standards
CAS No.2096331-56-3
Molecular FormulaC6H6BClO4S
Molecular Weight220.44 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Chloro-5-(methoxycarbonyl)thiophene-2-boronic acid CAS 2096331-56-3 chemical structure

Description

The occurrence of 4-Chloro-5-(methoxycarbonyl)thiophene-2-boronic acid is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 4-Chloro-5-(methoxycarbonyl)thiophene-2-boronic acid (CAS 2096331-56-3), a certified reference material (molecular formula C6H6BClO4S, MW 220.44 g/mol) for analytical method development and quality control.

Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, 4-Chloro-5-(methoxycarbonyl)thiophene-2-boronic acid is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 220.44 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.

As a certified reference material (CRM), 4-Chloro-5-(methoxycarbonyl)thiophene-2-boronic acid 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 FormulaC6H6BClO4S
Molecular Weight220.44 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, water
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)3.5
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1997
Halogen ContentCl-containing
Sulfur Atoms1

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