1-sulfanyl-4H,5H-[1,2,4]triazolo[4,3-a]quinoxalin-4-one CAS 540760-27-8

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 1-sulfanyl-4H,5H-[1,2,4]triazolo[4,3-a]quinoxalin-4-one (CAS 540760-27-8), a certified reference material (molecular formula C9H16N4OS, MW 228.31 g/mol) for analytical method development and quality control.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, 1-sulfanyl-4H,5H-[1,2,4]triazolo[4,3-a]quinoxalin-4-one is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 228.31 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).

As a certified reference material (CRM), 1-sulfanyl-4H,5H-[1,2,4]triazolo[4,3-a]quinoxalin-4-one 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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