3-Chloro-5-fluoro-2-methoxyphenylboronic acid CAS 2121513-76-4

Purity 97%+In StockPharmaceutical Standards
CAS No.2121513-76-4
Molecular FormulaC7H7BClFO3
Molecular Weight204.39 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Chloro-5-fluoro-2-methoxyphenylboronic acid CAS 2121513-76-4 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 204.39 g/mol gives 3-Chloro-5-fluoro-2-methoxyphenylboronic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

3-Chloro-5-fluoro-2-methoxyphenylboronic acid (CAS 2121513-76-4), molecular formula C7H7BClFO3 and molecular weight 204.39 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C7H7BClFO3, 3-Chloro-5-fluoro-2-methoxyphenylboronic 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 204.39 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).

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), 3-Chloro-5-fluoro-2-methoxyphenylboronic 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 FormulaC7H7BClFO3
Molecular Weight204.39 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 ContentF/Cl-containing

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