3-(3,5-Dimethylphenyl)-2-thioxo-2,3-dihydroquinazolin-4(1H)-one CAS 113269-21-9

Purity 97%+In StockPharmaceutical Standards
CAS No.113269-21-9
Molecular FormulaC16H14N2OS
Molecular Weight282.36 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-(3,5-Dimethylphenyl)-2-thioxo-2,3-dihydroquinazolin-4(1H)-one CAS 113269-21-9 chemical structure

Description

Structurally, 3-(3,5-Dimethylphenyl)-2-thioxo-2,3-dihydroquinazolin-4(1H)-one (C16H14N2OS) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 282.36 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

3-(3,5-Dimethylphenyl)-2-thioxo-2,3-dihydroquinazolin-4(1H)-one (CAS 113269-21-9), molecular formula C16H14N2OS and molecular weight 282.36 g/mol, is a CATO reference standard with documented purity and traceability.

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.

As a certified reference material (CRM), 3-(3,5-Dimethylphenyl)-2-thioxo-2,3-dihydroquinazolin-4(1H)-one meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC16H14N2OS
Molecular Weight282.36 g/mol
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)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1989
Nitrogen Atoms2
Sulfur Atoms1

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