4-Bromo-3-chloro-2-methylphenylboronic acid CAS 2121514-78-9

Description

Compared with other compounds in its class, the molecular weight of 249.30 g/mol gives 4-Bromo-3-chloro-2-methylphenylboronic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4-Bromo-3-chloro-2-methylphenylboronic acid (CAS 2121514-78-9), molecular formula C7H7BBrClO2 and molecular weight 249.30 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 4-Bromo-3-chloro-2-methylphenylboronic acid (C7H7BBrClO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.5, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 249.30 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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 4-Bromo-3-chloro-2-methylphenylboronic acid 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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