Methyl 4-Acetamido-2-hydroxy-3-(2-oxoethyl)benzoate CAS 202664-83-3

Description

Compared with other compounds in its class, the molecular weight of 251.24 g/mol gives Methyl 4-Acetamido-2-hydroxy-3-(2-oxoethyl)benzoate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Methyl 4-Acetamido-2-hydroxy-3-(2-oxoethyl)benzoate (CAS 202664-83-3), molecular formula C12H13NO5 and molecular weight 251.24 g/mol, is a CATO reference standard with documented purity and traceability.

Methyl 4-Acetamido-2-hydroxy-3-(2-oxoethyl)benzoate (C12H13NO5) contains an amino-acid-derived structure, 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. 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.

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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