2-Benzyl-4-bromo-1-methyl-1H-pyrazol-3(2H)-one CAS 51620-31-6

Description

2-Benzyl-4-bromo-1-methyl-1H-pyrazol-3(2H)-one (CAS 51620-31-6) is a high-purity analytical reference standard with the molecular formula C11H11BrN2O and a molecular weight of 267.12 g/mol.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution, 2-Benzyl-4-bromo-1-methyl-1H-pyrazol-3(2H)-one is typically off-white to pale yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 267.12 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.

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.

CATO manufactures 2-Benzyl-4-bromo-1-methyl-1H-pyrazol-3(2H)-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

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