2-Benzyloxy-4,5-dimethylphenylboronic acid, pinacol ester CAS 2121514-58-5

Purity 97%+In StockPharmaceutical Standards
CAS No.2121514-58-5
Molecular FormulaC21H27BO3
Molecular Weight338.25 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Benzyloxy-4,5-dimethylphenylboronic acid, pinacol ester CAS 2121514-58-5 chemical structure

Description

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.

2-Benzyloxy-4,5-dimethylphenylboronic acid, pinacol ester (CAS 2121514-58-5) is a high-purity analytical reference standard with the molecular formula C21H27BO3 and a molecular weight of 338.25 g/mol.

Owing to a steroid core, a hydroxyl group, an ether linkage, 2-Benzyloxy-4,5-dimethylphenylboronic acid, pinacol ester is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 338.25 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

CATO manufactures 2-Benzyloxy-4,5-dimethylphenylboronic acid, pinacol ester under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC21H27BO3
Molecular Weight338.25 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)8.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1997

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