8-Ethoxy-3-((4-fluorophenyl)sulfonyl)-2H-chromen-2-one CAS 904438-76-2

Description

The occurrence of 8-Ethoxy-3-((4-fluorophenyl)sulfonyl)-2H-chromen-2-one is closely related to a flavonoid core, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

8-Ethoxy-3-((4-fluorophenyl)sulfonyl)-2H-chromen-2-one (CAS 904438-76-2) is a high-purity analytical reference standard with the molecular formula C17H13FO5S and a molecular weight of 348.35 g/mol.

Owing to a flavonoid core, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution, 8-Ethoxy-3-((4-fluorophenyl)sulfonyl)-2H-chromen-2-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 348.35 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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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