7-Chloro-2-(4-fluorophenyl)-4H-chromen-4-one CAS 766511-64-2

Description

The occurrence of 7-Chloro-2-(4-fluorophenyl)-4H-chromen-4-one is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 7-Chloro-2-(4-fluorophenyl)-4H-chromen-4-one (CAS 766511-64-2), a certified reference material (molecular formula C15H8ClFO2, MW 274.67 g/mol) for analytical method development and quality control.

Structurally, 7-Chloro-2-(4-fluorophenyl)-4H-chromen-4-one (C15H8ClFO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 274.67 g/mol, it falls into the medium-molecular-weight range. 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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