4-Bromo-3-(2,4-dichlorophenyl)-1-methyl-1H-pyrazole CAS 133112-51-3

Description

The occurrence of 4-Bromo-3-(2,4-dichlorophenyl)-1-methyl-1H-pyrazole is closely related to a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine/bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

4-Bromo-3-(2,4-dichlorophenyl)-1-methyl-1H-pyrazole (CAS 133112-51-3), molecular formula C10H7BrCl2N2 and molecular weight 305.99 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 4-Bromo-3-(2,4-dichlorophenyl)-1-methyl-1H-pyrazole (C10H7BrCl2N2) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine/bromine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.

As a certified reference material (CRM), 4-Bromo-3-(2,4-dichlorophenyl)-1-methyl-1H-pyrazole meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

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