4-Ethynylphenylboronic acid pinacol ester CAS 1034287-04-1

Description

Compared with other compounds in its class, the molecular weight of 234.14 g/mol gives 4-Ethynylphenylboronic acid pinacol ester distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4-Ethynylphenylboronic acid pinacol ester (CAS 1034287-04-1), molecular formula C14H23BO2 and molecular weight 234.14 g/mol, is a CATO reference standard with documented purity and traceability.

4-Ethynylphenylboronic acid pinacol ester (C14H23BO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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), 4-Ethynylphenylboronic acid pinacol ester 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

Why CATO?

• ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
• 130,000+ catalog items in stock, COA supplied with every batch
• Worldwide shipping with full export documentation (HS code guidance available)
• Technical support: +86 18665070610 / Nicole.chen@cato-chem.com