4,4,5,5-Tetramethyl-2-(p-tolylethynyl)-1,3,2-dioxaborolane CAS 872356-93-9

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.

4,4,5,5-Tetramethyl-2-(p-tolylethynyl)-1,3,2-dioxaborolane (CAS 872356-93-9) is a high-purity analytical reference standard with the molecular formula C15H19BO2 and a molecular weight of 242.12 g/mol.

Based on its molecular formula C15H19BO2, 4,4,5,5-Tetramethyl-2-(p-tolylethynyl)-1,3,2-dioxaborolane contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 242.12 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

As a certified reference material (CRM), 4,4,5,5-Tetramethyl-2-(p-tolylethynyl)-1,3,2-dioxaborolane 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

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