3-(2,4-Dichlorobenzoyl)-5-(4-hydroxy-3-methoxybenzylidene)-2-thioxoimidazolidin-4-one CAS 554423-02-8

Purity 97%+In StockPharmaceutical Standards
CAS No.554423-02-8
Molecular FormulaC18H12Cl2N2O4S
Molecular Weight423.27 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-(2,4-Dichlorobenzoyl)-5-(4-hydroxy-3-methoxybenzylidene)-2-thioxoimidazolidin-4-one CAS 554423-02-8 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 423.27 g/mol gives 3-(2,4-Dichlorobenzoyl)-5-(4-hydroxy-3-methoxybenzylidene)-2-thioxoimidazolidin-4-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

3-(2,4-Dichlorobenzoyl)-5-(4-hydroxy-3-methoxybenzylidene)-2-thioxoimidazolidin-4-one (CAS 554423-02-8) is a high-purity analytical reference standard with the molecular formula C18H12Cl2N2O4S and a molecular weight of 423.27 g/mol.

3-(2,4-Dichlorobenzoyl)-5-(4-hydroxy-3-methoxybenzylidene)-2-thioxoimidazolidin-4-one (C18H12Cl2N2O4S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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-(2,4-Dichlorobenzoyl)-5-(4-hydroxy-3-methoxybenzylidene)-2-thioxoimidazolidin-4-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 FormulaC18H12Cl2N2O4S
Molecular Weight423.27 g/mol
Purity97%+
StorageStore in a cool place (≤25°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; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)13.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1984
Halogen ContentCl-containing
Nitrogen Atoms2
Sulfur Atoms1

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