(5-Hydroxy-2-methoxyphenyl)boronic acid CAS 1072952-43-2

Purity 97%+In StockPharmaceutical Standards
CAS No.1072952-43-2
Molecular FormulaC7H9BO4
Molecular Weight167.95 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(5-Hydroxy-2-methoxyphenyl)boronic acid CAS 1072952-43-2 chemical structure

Description

(5-Hydroxy-2-methoxyphenyl)boronic acid (CAS 1072952-43-2) is a high-purity analytical reference standard with the molecular formula C7H9BO4 and a molecular weight of 167.95 g/mol.

The molecular framework of (5-Hydroxy-2-methoxyphenyl)boronic acid (C7H9BO4) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC7H9BO4
Molecular Weight167.95 g/mol
Purity97%+
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)3.5
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1988

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