4-(4-Ethoxyphenyl)-2-{[2-(morpholin-4-yl)ethyl]amino}-4-oxobutanoic acid CAS 329929-15-9

Description

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.

4-(4-Ethoxyphenyl)-2-{[2-(morpholin-4-yl)ethyl]amino}-4-oxobutanoic acid (CAS 329929-15-9), molecular formula C18H26N2O5 and molecular weight 350.41 g/mol, is a CATO reference standard with documented purity and traceability.

4-(4-Ethoxyphenyl)-2-{[2-(morpholin-4-yl)ethyl]amino}-4-oxobutanoic acid (C18H26N2O5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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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