(3,5-Bis(trifluoromethyl)phenyl)diphenylphosphine oxide CAS 299176-62-8

Description

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.

(3,5-Bis(trifluoromethyl)phenyl)diphenylphosphine oxide (CAS 299176-62-8), molecular formula C20H13F6OP and molecular weight 414.28 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, (3,5-Bis(trifluoromethyl)phenyl)diphenylphosphine oxide (C20H13F6OP) contains a steroid core, organophosphorus functionality, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 11.5, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 414.28 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.

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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