4,4'-((2-Hydroxy-5-methyl-1,3-phenylene)bis(methylene))bis(benzene-1,3-diol) CAS 93933-64-3

Description

Compared with other compounds in its class, the molecular weight of 352.38 g/mol gives 4,4'-((2-Hydroxy-5-methyl-1,3-phenylene)bis(methylene))bis(benzene-1,3-diol) distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4,4'-((2-Hydroxy-5-methyl-1,3-phenylene)bis(methylene))bis(benzene-1,3-diol) (CAS 93933-64-3), molecular formula C21H20O5 and molecular weight 352.38 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a flavonoid core, a hydroxyl group, an ether linkage, 4,4'-((2-Hydroxy-5-methyl-1,3-phenylene)bis(methylene))bis(benzene-1,3-diol) is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 352.38 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 4,4'-((2-Hydroxy-5-methyl-1,3-phenylene)bis(methylene))bis(benzene-1,3-diol) 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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