Potassium (R)-2-((4-ethoxy-4-oxobut-2-en-2-yl)amino)-2-(4-hydroxyphenyl)acetate CAS 57938-86-0

Description

Compared with other compounds in its class, the molecular weight of 317.38 g/mol gives Potassium (R)-2-((4-ethoxy-4-oxobut-2-en-2-yl)amino)-2-(4-hydroxyphenyl)acetate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Potassium (R)-2-((4-ethoxy-4-oxobut-2-en-2-yl)amino)-2-(4-hydroxyphenyl)acetate (CAS 57938-86-0) is a high-purity analytical reference standard with the molecular formula C14H16NO5K and a molecular weight of 317.38 g/mol.

Potassium (R)-2-((4-ethoxy-4-oxobut-2-en-2-yl)amino)-2-(4-hydroxyphenyl)acetate (C14H16NO5K) contains a nitrogen-containing heterocyclic scaffold, 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.

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.

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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