1,5-dimethyl-3-(trifluoromethyl)-1H-pyrazole-4-sulfonyl chloride CAS 88398-42-9

Description

Compared with other compounds in its class, the molecular weight of 266.67 g/mol gives 1,5-dimethyl-3-(trifluoromethyl)-1H-pyrazole-4-sulfonyl chloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

1,5-dimethyl-3-(trifluoromethyl)-1H-pyrazole-4-sulfonyl chloride (CAS 88398-42-9) is a high-purity analytical reference standard with the molecular formula C6H10ClF3N2O2S and a molecular weight of 266.67 g/mol.

Structurally, 1,5-dimethyl-3-(trifluoromethyl)-1H-pyrazole-4-sulfonyl chloride (C6H10ClF3N2O2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 1.0, corresponding to approximately 1 ring(s) or double-bond equivalent(s). With a molecular weight of 266.67 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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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