5-Chloro-4-ethoxy-2-fluorophenylboronic acid CAS 2121511-65-5

Purity 97%+In StockPharmaceutical Standards
CAS No.2121511-65-5
Molecular FormulaC8H9BClFO3
Molecular Weight218.42 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Chloro-4-ethoxy-2-fluorophenylboronic acid CAS 2121511-65-5 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 218.42 g/mol gives 5-Chloro-4-ethoxy-2-fluorophenylboronic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

5-Chloro-4-ethoxy-2-fluorophenylboronic acid (CAS 2121511-65-5) is a high-purity analytical reference standard with the molecular formula C8H9BClFO3 and a molecular weight of 218.42 g/mol.

Based on its molecular formula C8H9BClFO3, 5-Chloro-4-ethoxy-2-fluorophenylboronic acid contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 218.42 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.

As a certified reference material (CRM), 5-Chloro-4-ethoxy-2-fluorophenylboronic 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 FormulaC8H9BClFO3
Molecular Weight218.42 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)3.5
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1997
Halogen ContentF/Cl-containing

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