4-Hydroxyphenyl Diphenyl Phosphate CAS 56806-74-7

Purity >95%In StockPharmaceutical Standards
CAS No.56806-74-7
Molecular FormulaC18H15O5P
Molecular Weight342.28 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Hydroxyphenyl Diphenyl Phosphate CAS 56806-74-7 chemical structure

Description

The occurrence of 4-Hydroxyphenyl Diphenyl 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.

4-Hydroxyphenyl Diphenyl Phosphate (CAS 56806-74-7) is a high-purity analytical reference standard with the molecular formula C18H15O5P and a molecular weight of 342.28 g/mol.

The molecular framework of 4-Hydroxyphenyl Diphenyl Phosphate (C18H15O5P) is characterized by a flavonoid core, a phosphate ester group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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

Molecular FormulaC18H15O5P
Molecular Weight342.28 g/mol
AppearancePale yellow to yellow crystalline powder
Purity>95%
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)11.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1973

Related Hydroxyphenyl Standards

Recommended Standards

Why CATO?