Ethyltrioctylphosphonium bromide CAS 56022-37-8

Description

The occurrence of Ethyltrioctylphosphonium bromide is closely related to organophosphorus functionality, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Ethyltrioctylphosphonium bromide (CAS 56022-37-8) is a high-purity analytical reference standard with the molecular formula C26H56PBr and a molecular weight of 479.61 g/mol.

Ethyltrioctylphosphonium bromide (C26H56PBr) contains organophosphorus functionality, bromine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.

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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