5-(2-Bromo-5-fluorophenyl)-1-(tert-butyl)-4-iodo-1H-pyrazole CAS 1245643-25-7

Description

The occurrence of 5-(2-Bromo-5-fluorophenyl)-1-(tert-butyl)-4-iodo-1H-pyrazole is closely related to a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine/bromine/iodine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

5-(2-Bromo-5-fluorophenyl)-1-(tert-butyl)-4-iodo-1H-pyrazole (CAS 1245643-25-7), molecular formula C13H13BrFIN2 and molecular weight 423.06 g/mol, is a CATO reference standard with documented purity and traceability.

5-(2-Bromo-5-fluorophenyl)-1-(tert-butyl)-4-iodo-1H-pyrazole (C13H13BrFIN2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine/bromine/iodine 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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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