2-bromo-1-(1-phenyl-1H-pyrazol-4-yl)ethan-1-one CAS 91062-67-8

Description

Compared with other compounds in its class, the molecular weight of 265.11 g/mol gives 2-bromo-1-(1-phenyl-1H-pyrazol-4-yl)ethan-1-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

2-bromo-1-(1-phenyl-1H-pyrazol-4-yl)ethan-1-one (CAS 91062-67-8), molecular formula C11H9BrN2O and molecular weight 265.11 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution, 2-bromo-1-(1-phenyl-1H-pyrazol-4-yl)ethan-1-one is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 265.11 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

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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