3-Chloro-1-(4-fluorophenyl)-5-(4-(methylthio)phenyl)-1H-pyrazole CAS 189699-79-4

Description

Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, fluorine/chlorine substitution, 3-Chloro-1-(4-fluorophenyl)-5-(4-(methylthio)phenyl)-1H-pyrazole is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 318.80 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

3-Chloro-1-(4-fluorophenyl)-5-(4-(methylthio)phenyl)-1H-pyrazole (CAS 189699-79-4) is a high-purity analytical reference standard with the molecular formula C16H12ClFN2S and a molecular weight of 318.80 g/mol.

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-Chloro-1-(4-fluorophenyl)-5-(4-(methylthio)phenyl)-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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