[1,2,4]Triazolo[4,3-a]quinoxalin-4(5H)-one CAS 91895-36-2

Description

The occurrence of [1,2,4]Triazolo[4,3-a]quinoxalin-4(5H)-one is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

[1,2,4]Triazolo[4,3-a]quinoxalin-4(5H)-one (CAS 91895-36-2) is a high-purity analytical reference standard with the molecular formula C9H6N4O and a molecular weight of 186.17 g/mol.

The molecular framework of [1,2,4]Triazolo[4,3-a]quinoxalin-4(5H)-one (C9H6N4O) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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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