3-(2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)-5-nitrobenzoic acid CAS 1424941-36-5

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.

3-(2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)-5-nitrobenzoic acid (CAS 1424941-36-5), molecular formula C11H6N2O6 and molecular weight 262.18 g/mol, is a CATO reference standard with documented purity and traceability.

3-(2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)-5-nitrobenzoic acid (C11H6N2O6) 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. 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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