Diphenyl-p-tolyl phosphate CAS 78-31-9

Description

The occurrence of Diphenyl-p-tolyl phosphate is closely related to a flavonoid core, a phosphate ester group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies Diphenyl-p-tolyl phosphate (CAS 78-31-9), a certified reference material (molecular formula C19H17O4P, MW 340.31 g/mol) for analytical method development and quality control.

Owing to a flavonoid core, a phosphate ester group, a hydroxyl group, an ether linkage, Diphenyl-p-tolyl phosphate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 340.31 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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), Diphenyl-p-tolyl phosphate 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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