7-fluoro-3-methyl-2-oxo-1,3-benzoxazole-6-carboxylic acid CAS 2387594-65-0

Description

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.

CATO supplies 7-fluoro-3-methyl-2-oxo-1,3-benzoxazole-6-carboxylic acid (CAS 2387594-65-0), a certified reference material (molecular formula C9H12FNO4, MW 217.19 g/mol) for analytical method development and quality control.

7-fluoro-3-methyl-2-oxo-1,3-benzoxazole-6-carboxylic acid (C9H12FNO4) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, 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.

Physical & Chemical Properties

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