2-(5-Bromo-4-methylthiophen-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane CAS 1111095-99-8

Description

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.

2-(5-Bromo-4-methylthiophen-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1111095-99-8), molecular formula C11H16BBrO2S and molecular weight 303.02 g/mol, is a CATO reference standard with documented purity and traceability.

2-(5-Bromo-4-methylthiophen-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (C11H16BBrO2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. Halogen substitution raises its density and boiling point, 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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.

Physical & Chemical Properties

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