4-Methyl-3-(thiophen-2-yl)-1H-pyrazole CAS 59843-89-9

Description

Compared with other compounds in its class, the molecular weight of 164.23 g/mol gives 4-Methyl-3-(thiophen-2-yl)-1H-pyrazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 4-Methyl-3-(thiophen-2-yl)-1H-pyrazole (CAS 59843-89-9), a certified reference material (molecular formula C8H8N2S, MW 164.23 g/mol) for analytical method development and quality control.

Structurally, 4-Methyl-3-(thiophen-2-yl)-1H-pyrazole (C8H8N2S) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 164.23 g/mol, it falls into the medium-molecular-weight range. 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.

As a certified reference material (CRM), 4-Methyl-3-(thiophen-2-yl)-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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