5-(3-Fluorophenyl)-4-hydroxy-2-(phenylethynyl)-6H-1,3-oxazin-6-one CAS 1956324-70-1

Description

The occurrence of 5-(3-Fluorophenyl)-4-hydroxy-2-(phenylethynyl)-6H-1,3-oxazin-6-one is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

5-(3-Fluorophenyl)-4-hydroxy-2-(phenylethynyl)-6H-1,3-oxazin-6-one (CAS 1956324-70-1) is a high-purity analytical reference standard with the molecular formula C18H10FNO3 and a molecular weight of 307.28 g/mol.

Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution, 5-(3-Fluorophenyl)-4-hydroxy-2-(phenylethynyl)-6H-1,3-oxazin-6-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 307.28 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.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

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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