3-Bromo-5-chloro-4-hydroxybenzaldehyde CAS 1849-76-9

Description

Compared with other compounds in its class, the molecular weight of 235.46 g/mol gives 3-Bromo-5-chloro-4-hydroxybenzaldehyde distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

3-Bromo-5-chloro-4-hydroxybenzaldehyde (CAS 1849-76-9), molecular formula C7H4BrClO2 and molecular weight 235.46 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C7H4BrClO2, 3-Bromo-5-chloro-4-hydroxybenzaldehyde contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 235.46 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.

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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