(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(diphenylphosphine) CAS 161265-03-8

Description

Structurally, (9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(diphenylphosphine) (C39H32OP2) contains organophosphorus functionality, a hydroxyl group, an ether linkage, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 24.0, corresponding to approximately 24 ring(s) or double-bond equivalent(s). With a molecular weight of 578.62 g/mol, it falls into the moderately-high-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.

CATO supplies (9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(diphenylphosphine) (CAS 161265-03-8), a certified reference material (molecular formula C39H32OP2, MW 578.62 g/mol) for analytical method development and quality control.

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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