2-((3-Fluorophenyl)ethynyl)-4-hydroxy-5-phenyl-6H-1,3-oxazin-6-one CAS 1956324-52-9

Purity 97%+In StockPharmaceutical Standards
CAS No.1956324-52-9
Molecular FormulaC18H10FNO3
Molecular Weight307.28 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-((3-Fluorophenyl)ethynyl)-4-hydroxy-5-phenyl-6H-1,3-oxazin-6-one CAS 1956324-52-9 chemical structure

Description

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.

CATO supplies 2-((3-Fluorophenyl)ethynyl)-4-hydroxy-5-phenyl-6H-1,3-oxazin-6-one (CAS 1956324-52-9), a certified reference material (molecular formula C18H10FNO3, MW 307.28 g/mol) for analytical method development and quality control.

Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution, 2-((3-Fluorophenyl)ethynyl)-4-hydroxy-5-phenyl-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.

As a certified reference material (CRM), 2-((3-Fluorophenyl)ethynyl)-4-hydroxy-5-phenyl-6H-1,3-oxazin-6-one meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC18H10FNO3
Molecular Weight307.28 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)14.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1996
Halogen ContentF-containing
Nitrogen Atoms1

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