3-(4-Chlorophenyl)-[1,2,4]triazolo[5,1-b]quinazolin-9(3H)-one CAS 95353-73-4

Purity 97%+In StockPharmaceutical Standards
CAS No.95353-73-4
Molecular FormulaC15H9ClN4O
Molecular Weight296.71 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-(4-Chlorophenyl)-[1,2,4]triazolo[5,1-b]quinazolin-9(3H)-one CAS 95353-73-4 chemical structure

Description

CATO manufactures 3-(4-Chlorophenyl)-[1,2,4]triazolo[5,1-b]quinazolin-9(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.

3-(4-Chlorophenyl)-[1,2,4]triazolo[5,1-b]quinazolin-9(3H)-one (CAS 95353-73-4) is a high-purity analytical reference standard with the molecular formula C15H9ClN4O and a molecular weight of 296.71 g/mol.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 3-(4-Chlorophenyl)-[1,2,4]triazolo[5,1-b]quinazolin-9(3H)-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 296.71 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 FormulaC15H9ClN4O
Molecular Weight296.71 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in DMSO, DMF, methanol
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.)1984
Halogen ContentCl-containing
Nitrogen Atoms4

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