(2-((4-Chlorobenzyl)oxy)-5-fluorophenyl)boronic acid CAS 1256358-54-9

Purity 97%+In StockPharmaceutical Standards
CAS No.1256358-54-9
Molecular FormulaC13H11BClFO3
Molecular Weight280.49 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(2-((4-Chlorobenzyl)oxy)-5-fluorophenyl)boronic acid CAS 1256358-54-9 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 280.49 g/mol gives (2-((4-Chlorobenzyl)oxy)-5-fluorophenyl)boronic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

(2-((4-Chlorobenzyl)oxy)-5-fluorophenyl)boronic acid (CAS 1256358-54-9) is a high-purity analytical reference standard with the molecular formula C13H11BClFO3 and a molecular weight of 280.49 g/mol.

Structurally, (2-((4-Chlorobenzyl)oxy)-5-fluorophenyl)boronic acid (C13H11BClFO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 7.5, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 280.49 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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 FormulaC13H11BClFO3
Molecular Weight280.49 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)7.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1990
Halogen ContentF/Cl-containing

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