4-((2-Methyl-4-oxoquinazolin-3(4H)-yl)amino)benzoic acid CAS 72743-28-3

Description

Compared with other compounds in its class, the molecular weight of 295.29 g/mol gives 4-((2-Methyl-4-oxoquinazolin-3(4H)-yl)amino)benzoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4-((2-Methyl-4-oxoquinazolin-3(4H)-yl)amino)benzoic acid (CAS 72743-28-3), molecular formula C16H13N3O3 and molecular weight 295.29 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 4-((2-Methyl-4-oxoquinazolin-3(4H)-yl)amino)benzoic acid (C16H13N3O3) 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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.

As a certified reference material (CRM), 4-((2-Methyl-4-oxoquinazolin-3(4H)-yl)amino)benzoic acid 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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