(4Z)-4-{[(2,4-difluorophenyl)amino]methylidene}-3-ethoxy-1-phenyl-4,5-dihydro-1H-pyrazol-5-one CAS 338750-95-1

Description

As a certified reference material (CRM), (4Z)-4-{[(2,4-difluorophenyl)amino]methylidene}-3-ethoxy-1-phenyl-4,5-dihydro-1H-pyrazol-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.

CATO supplies (4Z)-4-{[(2,4-difluorophenyl)amino]methylidene}-3-ethoxy-1-phenyl-4,5-dihydro-1H-pyrazol-5-one (CAS 338750-95-1), a certified reference material (molecular formula C18H15F2N3O2, MW 343.33 g/mol) for analytical method development and quality control.

The molecular framework of (4Z)-4-{[(2,4-difluorophenyl)amino]methylidene}-3-ethoxy-1-phenyl-4,5-dihydro-1H-pyrazol-5-one (C18H15F2N3O2) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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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