2-((4-Fluorophenyl)ethynyl)-4-hydroxy-5-phenyl-6H-1,3-oxazin-6-one CAS 1956385-72-0

Purity 97%+In StockPharmaceutical Standards
CAS No.1956385-72-0
Molecular FormulaC18H10FNO3
Molecular Weight307.28 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-((4-Fluorophenyl)ethynyl)-4-hydroxy-5-phenyl-6H-1,3-oxazin-6-one CAS 1956385-72-0 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 307.28 g/mol gives 2-((4-Fluorophenyl)ethynyl)-4-hydroxy-5-phenyl-6H-1,3-oxazin-6-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

2-((4-Fluorophenyl)ethynyl)-4-hydroxy-5-phenyl-6H-1,3-oxazin-6-one (CAS 1956385-72-0) is a high-purity analytical reference standard with the molecular formula C18H10FNO3 and a molecular weight of 307.28 g/mol.

2-((4-Fluorophenyl)ethynyl)-4-hydroxy-5-phenyl-6H-1,3-oxazin-6-one (C18H10FNO3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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.

As a certified reference material (CRM), 2-((4-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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