Ethyl 3-(5-methyl-3-phenylisoxazol-4-yl)-3-oxopropanoate CAS 677326-76-0

Description

Compared with other compounds in its class, the molecular weight of 273.28 g/mol gives Ethyl 3-(5-methyl-3-phenylisoxazol-4-yl)-3-oxopropanoate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Ethyl 3-(5-methyl-3-phenylisoxazol-4-yl)-3-oxopropanoate (CAS 677326-76-0), a certified reference material (molecular formula C15H15NO4, MW 273.28 g/mol) for analytical method development and quality control.

Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, Ethyl 3-(5-methyl-3-phenylisoxazol-4-yl)-3-oxopropanoate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 273.28 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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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