3-Ethyl-5-(1-phenyl-4-(1,3,3-trimethylindolin-2-ylidene)but-2-en-1-ylidene)-2-thioxothiazolidin-4-one CAS 14664-55-2

Description

As a certified reference material (CRM), 3-Ethyl-5-(1-phenyl-4-(1,3,3-trimethylindolin-2-ylidene)but-2-en-1-ylidene)-2-thioxothiazolidin-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.

3-Ethyl-5-(1-phenyl-4-(1,3,3-trimethylindolin-2-ylidene)but-2-en-1-ylidene)-2-thioxothiazolidin-4-one (CAS 14664-55-2), molecular formula C26H26N2OS2 and molecular weight 446.63 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, 3-Ethyl-5-(1-phenyl-4-(1,3,3-trimethylindolin-2-ylidene)but-2-en-1-ylidene)-2-thioxothiazolidin-4-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 446.63 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.

Physical & Chemical Properties

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