1-Mercapto-4-phenyl-4H-[1,2,4]triazolo[4,3-a]quinazolin-5-one CAS 67442-90-4

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1-Mercapto-4-phenyl-4H-[1,2,4]triazolo[4,3-a]quinazolin-5-one.

1-Mercapto-4-phenyl-4H-[1,2,4]triazolo[4,3-a]quinazolin-5-one (CAS 67442-90-4) is a high-purity analytical reference standard with the molecular formula C15H10N4OS and a molecular weight of 294.33 g/mol.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, 1-Mercapto-4-phenyl-4H-[1,2,4]triazolo[4,3-a]quinazolin-5-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 294.33 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.

CATO manufactures 1-Mercapto-4-phenyl-4H-[1,2,4]triazolo[4,3-a]quinazolin-5-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

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