[4,4'-Bipyridine]-3-carboxylic acid CAS 91135-53-4

Description

As a certified reference material (CRM), [4,4'-Bipyridine]-3-carboxylic 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.

[4,4'-Bipyridine]-3-carboxylic acid (CAS 91135-53-4) is a high-purity analytical reference standard with the molecular formula C11H8N2O2 and a molecular weight of 200.19 g/mol.

[4,4'-Bipyridine]-3-carboxylic acid (C11H8N2O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.

Physical & Chemical Properties

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