4'-Bromo-[1,1'-biphenyl]-4-carboxylic acid CAS 5731-11-3

Description

The occurrence of 4'-Bromo-[1,1'-biphenyl]-4-carboxylic acid is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

4'-Bromo-[1,1'-biphenyl]-4-carboxylic acid (CAS 5731-11-3) is a high-purity analytical reference standard with the molecular formula C13H9BrO2 and a molecular weight of 277.11 g/mol.

Structurally, 4'-Bromo-[1,1'-biphenyl]-4-carboxylic acid (C13H9BrO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 277.11 g/mol, it falls into the medium-molecular-weight range. 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.

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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