Ethyl 3-(4-methylbenzamido)-2-oxo-6-phenyl-2H-pyran-5-carboxylate CAS 339009-32-4

Description

Compared with other compounds in its class, the molecular weight of 377.39 g/mol gives Ethyl 3-(4-methylbenzamido)-2-oxo-6-phenyl-2H-pyran-5-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Ethyl 3-(4-methylbenzamido)-2-oxo-6-phenyl-2H-pyran-5-carboxylate (CAS 339009-32-4), molecular formula C22H19NO5 and molecular weight 377.39 g/mol, is a CATO reference standard with documented purity and traceability.

Ethyl 3-(4-methylbenzamido)-2-oxo-6-phenyl-2H-pyran-5-carboxylate (C22H19NO5) contains a flavonoid core, an amide group, 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).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

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