1,3,5-Triphenyl-4,5-dihydro-1H-pyrazole CAS 742-01-8

Description

The occurrence of 1,3,5-Triphenyl-4,5-dihydro-1H-pyrazole is closely related to a nitrogen-containing heterocyclic scaffold, a nitrile group in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

1,3,5-Triphenyl-4,5-dihydro-1H-pyrazole (CAS 742-01-8) is a high-purity analytical reference standard with the molecular formula C21H18N2 and a molecular weight of 298.38 g/mol.

Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, 1,3,5-Triphenyl-4,5-dihydro-1H-pyrazole is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 298.38 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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), 1,3,5-Triphenyl-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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