2-Phenyl-4-(2-phenylallylidene)oxazol-5(4H)-one CAS 675818-20-9

Purity 97%+In StockPharmaceutical Standards
CAS No.675818-20-9
Molecular FormulaC18H13NO2
Molecular Weight275.30 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Phenyl-4-(2-phenylallylidene)oxazol-5(4H)-one CAS 675818-20-9 chemical structure

Description

Structurally, 2-Phenyl-4-(2-phenylallylidene)oxazol-5(4H)-one (C18H13NO2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 275.30 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

CATO supplies 2-Phenyl-4-(2-phenylallylidene)oxazol-5(4H)-one (CAS 675818-20-9), a certified reference material (molecular formula C18H13NO2, MW 275.30 g/mol) for analytical method development and quality control.

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

Molecular FormulaC18H13NO2
Molecular Weight275.30 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)13.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1985
Nitrogen Atoms1

Related Phenyl Standards

Recommended Standards

Why CATO?