5-Methyl-3-(methylthio)-1-phenyl-1H-pyrazole CAS 18714-79-9

Description

Compared with other compounds in its class, the molecular weight of 204.29 g/mol gives 5-Methyl-3-(methylthio)-1-phenyl-1H-pyrazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

5-Methyl-3-(methylthio)-1-phenyl-1H-pyrazole (CAS 18714-79-9), molecular formula C11H12N2S and molecular weight 204.29 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C11H12N2S, 5-Methyl-3-(methylthio)-1-phenyl-1H-pyrazole contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 204.29 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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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