6-Fluoro-7-methyl-8-nitroquinoline-4-carboxylic acid CAS 1420794-55-3

Description

6-Fluoro-7-methyl-8-nitroquinoline-4-carboxylic acid (CAS 1420794-55-3), molecular formula C11H7FN2O4 and molecular weight 250.18 g/mol, is a CATO reference standard with documented purity and traceability.

6-Fluoro-7-methyl-8-nitroquinoline-4-carboxylic acid (C11H7FN2O4) 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. 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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