2-Amino-7-bromo-4-(4-chloro-3-nitrophenyl)-4H-benzo[g]chromene-3-carbonitrile CAS 861208-32-4

Description

CATO supplies 2-Amino-7-bromo-4-(4-chloro-3-nitrophenyl)-4H-benzo[g]chromene-3-carbonitrile (CAS 861208-32-4), a certified reference material (molecular formula C20H11BrClN3O3, MW 456.68 g/mol) for analytical method development and quality control.

2-Amino-7-bromo-4-(4-chloro-3-nitrophenyl)-4H-benzo[g]chromene-3-carbonitrile (C20H11BrClN3O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine/bromine 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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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