5-(4-Chlorophenyl)-1-(2,3-dimethylphenyl)-4-(phenylsulfonyl)-1H-pyrazole CAS 318951-68-7

Description

Compared with other compounds in its class, the molecular weight of 422.93 g/mol gives 5-(4-Chlorophenyl)-1-(2,3-dimethylphenyl)-4-(phenylsulfonyl)-1H-pyrazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

5-(4-Chlorophenyl)-1-(2,3-dimethylphenyl)-4-(phenylsulfonyl)-1H-pyrazole (CAS 318951-68-7) is a high-purity analytical reference standard with the molecular formula C23H19ClN2O2S and a molecular weight of 422.93 g/mol.

The molecular framework of 5-(4-Chlorophenyl)-1-(2,3-dimethylphenyl)-4-(phenylsulfonyl)-1H-pyrazole (C23H19ClN2O2S) is characterized by a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, 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. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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), 5-(4-Chlorophenyl)-1-(2,3-dimethylphenyl)-4-(phenylsulfonyl)-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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