4,4,5,5-Tetramethyl-2-(2-(4-nitrophenoxy)phenyl)-1,3,2-dioxaborolane CAS 870221-30-0

Description

4,4,5,5-Tetramethyl-2-(2-(4-nitrophenoxy)phenyl)-1,3,2-dioxaborolane (CAS 870221-30-0), molecular formula C18H20BNO5 and molecular weight 341.17 g/mol, is a CATO reference standard with documented purity and traceability.

4,4,5,5-Tetramethyl-2-(2-(4-nitrophenoxy)phenyl)-1,3,2-dioxaborolane (C18H20BNO5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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

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