5-[(4-Methoxyphenyl)methylidene]-3-phenyl-2-[(4H-1,2,4-triazol-4-yl)imino]-1,3-thiazolidin-4-one CAS 478258-93-4

Description

5-[(4-Methoxyphenyl)methylidene]-3-phenyl-2-[(4H-1,2,4-triazol-4-yl)imino]-1,3-thiazolidin-4-one (CAS 478258-93-4), molecular formula C19H15N5O2S and molecular weight 377.42 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C19H15N5O2S, 5-[(4-Methoxyphenyl)methylidene]-3-phenyl-2-[(4H-1,2,4-triazol-4-yl)imino]-1,3-thiazolidin-4-one contains a steroid core, 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 377.42 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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), 5-[(4-Methoxyphenyl)methylidene]-3-phenyl-2-[(4H-1,2,4-triazol-4-yl)imino]-1,3-thiazolidin-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

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