4-Ethynyl-5-fluoro-1,3-dimethyl-1H-pyrazole CAS 1823967-57-2

Description

The occurrence of 4-Ethynyl-5-fluoro-1,3-dimethyl-1H-pyrazole is closely related to a nitrile group, fluorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

4-Ethynyl-5-fluoro-1,3-dimethyl-1H-pyrazole (CAS 1823967-57-2) is a high-purity analytical reference standard with the molecular formula C7H7FN2 and a molecular weight of 138.14 g/mol.

Based on its molecular formula C7H7FN2, 4-Ethynyl-5-fluoro-1,3-dimethyl-1H-pyrazole contains a nitrile group, fluorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 138.14 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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-Ethynyl-5-fluoro-1,3-dimethyl-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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