5'-Methyl-[1,1':3',1''-terphenyl]-4,4''-dicarboxylic acid CAS 1582811-97-9

Description

The occurrence of 5'-Methyl-[1,1':3',1''-terphenyl]-4,4''-dicarboxylic acid is closely related to a flavonoid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

5'-Methyl-[1,1':3',1''-terphenyl]-4,4''-dicarboxylic acid (CAS 1582811-97-9), molecular formula C21H16O4 and molecular weight 332.35 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a flavonoid core, a hydroxyl group, an ether linkage, 5'-Methyl-[1,1':3',1''-terphenyl]-4,4''-dicarboxylic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 332.35 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.

CATO manufactures 5'-Methyl-[1,1':3',1''-terphenyl]-4,4''-dicarboxylic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

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