p-Xylylenebis(triphenylphosphonium bromide) CAS 40817-03-6

Description

Compared with other compounds in its class, the molecular weight of 708.64 g/mol gives p-Xylylenebis(triphenylphosphonium bromide) distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

p-Xylylenebis(triphenylphosphonium bromide) (CAS 40817-03-6) is a high-purity analytical reference standard with the molecular formula C44H38P2Br and a molecular weight of 708.64 g/mol.

p-Xylylenebis(triphenylphosphonium bromide) (C44H38P2Br) contains organophosphorus functionality, bromine substitution, a polycyclic aromatic system. 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. 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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