4-(4-Bromophenyl)-1-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]-3-methyl-4,5-dihydro-1H-1,2,4-triazol-5-one CAS 860644-56-0

Description

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.

4-(4-Bromophenyl)-1-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]-3-methyl-4,5-dihydro-1H-1,2,4-triazol-5-one (CAS 860644-56-0) is a high-purity analytical reference standard with the molecular formula C15H9BrClF3N4O and a molecular weight of 433.61 g/mol.

Based on its molecular formula C15H9BrClF3N4O, 4-(4-Bromophenyl)-1-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]-3-methyl-4,5-dihydro-1H-1,2,4-triazol-5-one contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine/bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 433.61 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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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