3-(3,4-Dimethoxy-phenyl)-6-hydroxy-2-mercapto-3H-quinazolin-4-one CAS 568544-01-4

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.

CATO supplies 3-(3,4-Dimethoxy-phenyl)-6-hydroxy-2-mercapto-3H-quinazolin-4-one (CAS 568544-01-4), a certified reference material (molecular formula C16H14N2O4S, MW 330.36 g/mol) for analytical method development and quality control.

Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, 3-(3,4-Dimethoxy-phenyl)-6-hydroxy-2-mercapto-3H-quinazolin-4-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 330.36 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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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