N-(4-Oxo-2-phenylquinazolin-3(4H)-yl)benzimidamide CAS 61330-42-5

Purity 97%+In StockPharmaceutical Standards
CAS No.61330-42-5
Molecular FormulaC21H16N4O
Molecular Weight340.38 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

N-(4-Oxo-2-phenylquinazolin-3(4H)-yl)benzimidamide CAS 61330-42-5 chemical structure

Description

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.

N-(4-Oxo-2-phenylquinazolin-3(4H)-yl)benzimidamide (CAS 61330-42-5) is a high-purity analytical reference standard with the molecular formula C21H16N4O and a molecular weight of 340.38 g/mol.

Structurally, N-(4-Oxo-2-phenylquinazolin-3(4H)-yl)benzimidamide (C21H16N4O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 16.0, corresponding to approximately 16 ring(s) or double-bond equivalent(s). With a molecular weight of 340.38 g/mol, it falls into the moderately-high-molecular-weight range. 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.

Physical & Chemical Properties

Molecular FormulaC21H16N4O
Molecular Weight340.38 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)16.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1974
Nitrogen Atoms4

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