Ethyl 1-(2-bromophenyl)-5-chloro-1H-pyrazole-4-carboxylate CAS 1245091-90-0

Description

Compared with other compounds in its class, the molecular weight of 329.58 g/mol gives Ethyl 1-(2-bromophenyl)-5-chloro-1H-pyrazole-4-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Ethyl 1-(2-bromophenyl)-5-chloro-1H-pyrazole-4-carboxylate (CAS 1245091-90-0) is a high-purity analytical reference standard with the molecular formula C12H10BrClN2O2 and a molecular weight of 329.58 g/mol.

Ethyl 1-(2-bromophenyl)-5-chloro-1H-pyrazole-4-carboxylate (C12H10BrClN2O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine/bromine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; 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.

As a certified reference material (CRM), Ethyl 1-(2-bromophenyl)-5-chloro-1H-pyrazole-4-carboxylate 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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