(E)-{1-[3-(4-chlorophenyl)-1,2-oxazol-5-yl]ethylidene}amino benzoate CAS 478066-78-3

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.

(E)-{1-[3-(4-chlorophenyl)-1,2-oxazol-5-yl]ethylidene}amino benzoate (CAS 478066-78-3) is a high-purity analytical reference standard with the molecular formula C18H13ClN2O3 and a molecular weight of 340.76 g/mol.

Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, (E)-{1-[3-(4-chlorophenyl)-1,2-oxazol-5-yl]ethylidene}amino benzoate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 340.76 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

As a certified reference material (CRM), (E)-{1-[3-(4-chlorophenyl)-1,2-oxazol-5-yl]ethylidene}amino benzoate 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

Why CATO?

• ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
• 130,000+ catalog items in stock, COA supplied with every batch
• Worldwide shipping with full export documentation (HS code guidance available)
• Technical support: +86 18665070610 / Nicole.chen@cato-chem.com