3-Ethynyl-1,4-dimethyl-1H-pyrazole CAS 2105612-53-9

Description

Compared with other compounds in its class, the molecular weight of 120.15 g/mol gives 3-Ethynyl-1,4-dimethyl-1H-pyrazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

3-Ethynyl-1,4-dimethyl-1H-pyrazole (CAS 2105612-53-9) is a high-purity analytical reference standard with the molecular formula C7H8N2 and a molecular weight of 120.15 g/mol.

Structurally, 3-Ethynyl-1,4-dimethyl-1H-pyrazole (C7H8N2) contains a nitrile group, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 120.15 g/mol, it falls into the low-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).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

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