Bis(2-ethylhexyl)phosphine oxide CAS 195195-90-5

Description

The occurrence of Bis(2-ethylhexyl)phosphine oxide is closely related to organophosphorus functionality, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Bis(2-ethylhexyl)phosphine oxide (CAS 195195-90-5), molecular formula C16H35OP and molecular weight 274.42 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, Bis(2-ethylhexyl)phosphine oxide (C16H35OP) contains organophosphorus functionality, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of -0.5, corresponding to approximately 0 ring(s) or double-bond equivalent(s). With a molecular weight of 274.42 g/mol, it falls into the medium-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.

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.

As a certified reference material (CRM), Bis(2-ethylhexyl)phosphine oxide meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

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