2,4-Dihydro-4-[4-(1-methylpropyl)phenyl]-1-thioxo[1,2,4]triazolo[4,3-a]quinazolin-5(1H)-one CAS 735322-58-4

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.

CATO supplies 2,4-Dihydro-4-[4-(1-methylpropyl)phenyl]-1-thioxo[1,2,4]triazolo[4,3-a]quinazolin-5(1H)-one (CAS 735322-58-4), a certified reference material (molecular formula C19H18N4OS, MW 350.44 g/mol) for analytical method development and quality control.

The molecular framework of 2,4-Dihydro-4-[4-(1-methylpropyl)phenyl]-1-thioxo[1,2,4]triazolo[4,3-a]quinazolin-5(1H)-one (C19H18N4OS) is characterized by a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.

Physical & Chemical Properties

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