5-(2-Bromo-5-(trifluoromethyl)phenyl)-1-methyl-1H-pyrazole CAS 1423161-91-4

Description

Compared with other compounds in its class, the molecular weight of 305.09 g/mol gives 5-(2-Bromo-5-(trifluoromethyl)phenyl)-1-methyl-1H-pyrazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

5-(2-Bromo-5-(trifluoromethyl)phenyl)-1-methyl-1H-pyrazole (CAS 1423161-91-4) is a high-purity analytical reference standard with the molecular formula C11H8BrF3N2 and a molecular weight of 305.09 g/mol.

5-(2-Bromo-5-(trifluoromethyl)phenyl)-1-methyl-1H-pyrazole (C11H8BrF3N2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine/bromine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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.

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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