3-(4-Benzylidene-2-methyl-5-oxo-4,5-dihydro-1H-imidazol-1-yl)-2-ethylquinazolin-4(3H)-one CAS 114496-26-3

Purity 97%+In StockPharmaceutical Standards
CAS No.114496-26-3
Molecular FormulaC21H18N4O2
Molecular Weight358.39 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-(4-Benzylidene-2-methyl-5-oxo-4,5-dihydro-1H-imidazol-1-yl)-2-ethylquinazolin-4(3H)-one CAS 114496-26-3 chemical structure

Description

The occurrence of 3-(4-Benzylidene-2-methyl-5-oxo-4,5-dihydro-1H-imidazol-1-yl)-2-ethylquinazolin-4(3H)-one is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 3-(4-Benzylidene-2-methyl-5-oxo-4,5-dihydro-1H-imidazol-1-yl)-2-ethylquinazolin-4(3H)-one (CAS 114496-26-3), a certified reference material (molecular formula C21H18N4O2, MW 358.39 g/mol) for analytical method development and quality control.

Based on its molecular formula C21H18N4O2, 3-(4-Benzylidene-2-methyl-5-oxo-4,5-dihydro-1H-imidazol-1-yl)-2-ethylquinazolin-4(3H)-one contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 358.39 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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 manufactures 3-(4-Benzylidene-2-methyl-5-oxo-4,5-dihydro-1H-imidazol-1-yl)-2-ethylquinazolin-4(3H)-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC21H18N4O2
Molecular Weight358.39 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)15.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1989
Nitrogen Atoms4

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