(4E)-4-[(3-Chloro-4-methoxyphenyl)methylidene]-2-(2-iodophenyl)-4,5-dihydro-1,3-oxazol-5-one CAS 861211-36-1

Description

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.

(4E)-4-[(3-Chloro-4-methoxyphenyl)methylidene]-2-(2-iodophenyl)-4,5-dihydro-1,3-oxazol-5-one (CAS 861211-36-1) is a high-purity analytical reference standard with the molecular formula C17H11ClINO3 and a molecular weight of 439.63 g/mol.

Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine/iodine substitution, (4E)-4-[(3-Chloro-4-methoxyphenyl)methylidene]-2-(2-iodophenyl)-4,5-dihydro-1,3-oxazol-5-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 439.63 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

As a certified reference material (CRM), (4E)-4-[(3-Chloro-4-methoxyphenyl)methylidene]-2-(2-iodophenyl)-4,5-dihydro-1,3-oxazol-5-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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