5-(4-Fluorophenyl)-2-((4-fluorophenyl)ethynyl)-4-hydroxy-6H-1,3-oxazin-6-one CAS 1956376-41-2

Purity 97%+In StockPharmaceutical Standards
CAS No.1956376-41-2
Molecular FormulaC18H9F2NO3
Molecular Weight325.27 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-(4-Fluorophenyl)-2-((4-fluorophenyl)ethynyl)-4-hydroxy-6H-1,3-oxazin-6-one CAS 1956376-41-2 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5-(4-Fluorophenyl)-2-((4-fluorophenyl)ethynyl)-4-hydroxy-6H-1,3-oxazin-6-one.

CATO supplies 5-(4-Fluorophenyl)-2-((4-fluorophenyl)ethynyl)-4-hydroxy-6H-1,3-oxazin-6-one (CAS 1956376-41-2), a certified reference material (molecular formula C18H9F2NO3, MW 325.27 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, 5-(4-Fluorophenyl)-2-((4-fluorophenyl)ethynyl)-4-hydroxy-6H-1,3-oxazin-6-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 325.27 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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

Molecular FormulaC18H9F2NO3
Molecular Weight325.27 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
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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