3-Cyclohexyl-2-phenylquinazolin-4(3H)-one CAS 355153-78-5

Purity 97%+In StockPharmaceutical Standards
CAS No.355153-78-5
Molecular FormulaC20H20N2O
Molecular Weight304.39 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Cyclohexyl-2-phenylquinazolin-4(3H)-one CAS 355153-78-5 chemical structure

Description

The occurrence of 3-Cyclohexyl-2-phenylquinazolin-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.

3-Cyclohexyl-2-phenylquinazolin-4(3H)-one (CAS 355153-78-5) is a high-purity analytical reference standard with the molecular formula C20H20N2O and a molecular weight of 304.39 g/mol.

Based on its molecular formula C20H20N2O, 3-Cyclohexyl-2-phenylquinazolin-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 304.39 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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 FormulaC20H20N2O
Molecular Weight304.39 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Nitrogen Atoms2

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