Ethyl 5,7-dihydroxy-3-(4-methoxyphenyl)-4-oxo-4H-chromene-2-carboxylate CAS 15485-76-4

Description

Compared with other compounds in its class, the molecular weight of 356.33 g/mol gives Ethyl 5,7-dihydroxy-3-(4-methoxyphenyl)-4-oxo-4H-chromene-2-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Ethyl 5,7-dihydroxy-3-(4-methoxyphenyl)-4-oxo-4H-chromene-2-carboxylate (CAS 15485-76-4) is a high-purity analytical reference standard with the molecular formula C19H16O7 and a molecular weight of 356.33 g/mol.

Ethyl 5,7-dihydroxy-3-(4-methoxyphenyl)-4-oxo-4H-chromene-2-carboxylate (C19H16O7) contains a flavonoid core, a hydroxyl group, an ether linkage. 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.

As a certified reference material (CRM), Ethyl 5,7-dihydroxy-3-(4-methoxyphenyl)-4-oxo-4H-chromene-2-carboxylate 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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