5-(4-Methoxyphenyl)pyrazine-2,3-dicarboxylic acid CAS 80356-80-5

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5-(4-Methoxyphenyl)pyrazine-2,3-dicarboxylic acid.

5-(4-Methoxyphenyl)pyrazine-2,3-dicarboxylic acid (CAS 80356-80-5), molecular formula C13H10N2O5 and molecular weight 274.23 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 5-(4-Methoxyphenyl)pyrazine-2,3-dicarboxylic acid (C13H10N2O5) 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), 5-(4-Methoxyphenyl)pyrazine-2,3-dicarboxylic 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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