3-Ethyl-5-(2-(3-ethylbenzo[d]oxazol-2(3H)-ylidene)ethylidene)-2-thioxothiazolidin-4-one CAS 25962-05-4

Purity 97%+In StockPharmaceutical Standards
CAS No.25962-05-4
Molecular FormulaC16H16N2O2S2
Molecular Weight332.44 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Ethyl-5-(2-(3-ethylbenzo[d]oxazol-2(3H)-ylidene)ethylidene)-2-thioxothiazolidin-4-one CAS 25962-05-4 chemical structure

Description

3-Ethyl-5-(2-(3-ethylbenzo[d]oxazol-2(3H)-ylidene)ethylidene)-2-thioxothiazolidin-4-one (CAS 25962-05-4), molecular formula C16H16N2O2S2 and molecular weight 332.44 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C16H16N2O2S2, 3-Ethyl-5-(2-(3-ethylbenzo[d]oxazol-2(3H)-ylidene)ethylidene)-2-thioxothiazolidin-4-one contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 332.44 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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.

CATO manufactures 3-Ethyl-5-(2-(3-ethylbenzo[d]oxazol-2(3H)-ylidene)ethylidene)-2-thioxothiazolidin-4-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.

Physical & Chemical Properties

Molecular FormulaC16H16N2O2S2
Molecular Weight332.44 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)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1964
Nitrogen Atoms2
Sulfur Atoms2

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