N-(2-benzoyl-4-chlorophenyl)-4-nitrobenzamide CAS 157488-07-8

Description

The occurrence of N-(2-benzoyl-4-chlorophenyl)-4-nitrobenzamide is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

N-(2-benzoyl-4-chlorophenyl)-4-nitrobenzamide (CAS 157488-07-8), molecular formula C20H13ClN2O4 and molecular weight 380.78 g/mol, is a CATO reference standard with documented purity and traceability.

N-(2-benzoyl-4-chlorophenyl)-4-nitrobenzamide (C20H13ClN2O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine 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.

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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