4-(Benzyloxycarbonyl)-3-methylphenylboronic acid pinacol ester CAS 2121511-93-9

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-(Benzyloxycarbonyl)-3-methylphenylboronic acid pinacol ester.

CATO supplies 4-(Benzyloxycarbonyl)-3-methylphenylboronic acid pinacol ester (CAS 2121511-93-9), a certified reference material (molecular formula C21H25BO4, MW 352.23 g/mol) for analytical method development and quality control.

Based on its molecular formula C21H25BO4, 4-(Benzyloxycarbonyl)-3-methylphenylboronic acid pinacol ester contains a flavonoid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 352.23 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.

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

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