2-Diethoxyphosphorylethylbenzene CAS 54553-21-8

Purity 97%+In StockPharmaceutical Standards
CAS No.54553-21-8
Molecular FormulaC12H19O3P
Molecular Weight242.25 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Diethoxyphosphorylethylbenzene CAS 54553-21-8 chemical structure

Description

2-Diethoxyphosphorylethylbenzene (CAS 54553-21-8) is a high-purity analytical reference standard with the molecular formula C12H19O3P and a molecular weight of 242.25 g/mol.

The molecular framework of 2-Diethoxyphosphorylethylbenzene (C12H19O3P) is characterized by a phosphonate group, a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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 FormulaC12H19O3P
Molecular Weight242.25 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)3.5
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1972

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