3',4'-Dimethyl-[1,1'-biphenyl]-2,5-dione CAS 627889-76-3

Description

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.

3',4'-Dimethyl-[1,1'-biphenyl]-2,5-dione (CAS 627889-76-3), molecular formula C14H12O2 and molecular weight 212.24 g/mol, is a CATO reference standard with documented purity and traceability.

3',4'-Dimethyl-[1,1'-biphenyl]-2,5-dione (C14H12O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. 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).

As a certified reference material (CRM), 3',4'-Dimethyl-[1,1'-biphenyl]-2,5-dione 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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