(5E)-5-(2-Ethoxybenzylidene)-2-mercapto-3-phenyl-3,5-dihydro-4H-imidazol-4-one CAS 897533-18-5

Purity 97%+In StockPharmaceutical Standards
CAS No.897533-18-5
Molecular FormulaC18H16N2O2S
Molecular Weight324.40 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(5E)-5-(2-Ethoxybenzylidene)-2-mercapto-3-phenyl-3,5-dihydro-4H-imidazol-4-one CAS 897533-18-5 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 324.40 g/mol gives (5E)-5-(2-Ethoxybenzylidene)-2-mercapto-3-phenyl-3,5-dihydro-4H-imidazol-4-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

(5E)-5-(2-Ethoxybenzylidene)-2-mercapto-3-phenyl-3,5-dihydro-4H-imidazol-4-one (CAS 897533-18-5), molecular formula C18H16N2O2S and molecular weight 324.40 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, (5E)-5-(2-Ethoxybenzylidene)-2-mercapto-3-phenyl-3,5-dihydro-4H-imidazol-4-one (C18H16N2O2S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 324.40 g/mol, it falls into the moderately-high-molecular-weight range. 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.

As a certified reference material (CRM), (5E)-5-(2-Ethoxybenzylidene)-2-mercapto-3-phenyl-3,5-dihydro-4H-imidazol-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 FormulaC18H16N2O2S
Molecular Weight324.40 g/mol
Purity97%+
StorageStore at 2-8°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
Degree of Unsaturation (DBE)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987
Nitrogen Atoms2
Sulfur Atoms1

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