3-(4-Chlorophenyl)-1-(4-fluorophenyl)-5-phenyl-4,5-dihydro-1H-pyrazole CAS 338777-18-7

Description

Compared with other compounds in its class, the molecular weight of 350.82 g/mol gives 3-(4-Chlorophenyl)-1-(4-fluorophenyl)-5-phenyl-4,5-dihydro-1H-pyrazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 3-(4-Chlorophenyl)-1-(4-fluorophenyl)-5-phenyl-4,5-dihydro-1H-pyrazole (CAS 338777-18-7), a certified reference material (molecular formula C21H16ClFN2, MW 350.82 g/mol) for analytical method development and quality control.

The molecular framework of 3-(4-Chlorophenyl)-1-(4-fluorophenyl)-5-phenyl-4,5-dihydro-1H-pyrazole (C21H16ClFN2) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine/chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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), 3-(4-Chlorophenyl)-1-(4-fluorophenyl)-5-phenyl-4,5-dihydro-1H-pyrazole 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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