1-[(4-bromophenyl)methyl]-3,5-dimethyl-1H-pyrazole CAS 1249152-29-1

Description

The occurrence of 1-[(4-bromophenyl)methyl]-3,5-dimethyl-1H-pyrazole is closely related to a nitrogen-containing heterocyclic scaffold, a nitrile group, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

1-[(4-bromophenyl)methyl]-3,5-dimethyl-1H-pyrazole (CAS 1249152-29-1), molecular formula C12H13BrN2 and molecular weight 265.15 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, bromine substitution, 1-[(4-bromophenyl)methyl]-3,5-dimethyl-1H-pyrazole is typically off-white to pale yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 265.15 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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), 1-[(4-bromophenyl)methyl]-3,5-dimethyl-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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