5,5'-Diamino-2H,2'H-[3,3'-bipyridinylidene]-2,2',6,6'(1H,1'H)-tetraone CAS 2435-59-8

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5,5'-Diamino-2H,2'H-[3,3'-bipyridinylidene]-2,2',6,6'(1H,1'H)-tetraone.

5,5'-Diamino-2H,2'H-[3,3'-bipyridinylidene]-2,2',6,6'(1H,1'H)-tetraone (CAS 2435-59-8) is a high-purity analytical reference standard with the molecular formula C10H8N4O4 and a molecular weight of 248.19 g/mol.

5,5'-Diamino-2H,2'H-[3,3'-bipyridinylidene]-2,2',6,6'(1H,1'H)-tetraone (C10H8N4O4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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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