Benzyl diethyl phosphite

Benzyl diethyl phosphite structural formula

CAS Number2768-31-2
Molecular FormulaC11H17O3P
Molecular Weight228.228
  • Benzyl diethyl phosphite
  • Phosphorous acid, diethyl phenylmethyl ester
  • 2768-31-2
  • EINECS 220-452-4


Separation of Benzyl diethyl phosphite on Newcrom R1 HPLC column

May 16, 2018
Separation of Benzyl diethyl phosphite on Newcrom R1 HPLC column

Benzyl diethyl phosphite can be analyzed by this reverse phase (RP) HPLC method with simple conditions. The mobile phase contains an acetonitrile (MeCN), water, and phosphoric acid. For Mass-Spec (MS) compatible applications the phosphoric acid needs to be replaced with formic acid. Smaller 3 µm particles columns available for fast UPLC applications. This liquid chromatography method is scalable and can be used for isolation impurities in preparative separation. It also suitable for pharmacokinetics.

Application Column

Newcrom R1

The Newcrom columns are a family of reverse-phase-based columns. Newcrom A, AH, B, and BH are all mixed-mode columns with either positive or negative ion-pairing groups attached to either short (25 Å) or long (100 Å) ligand chains. Newcrom R1 is a special reverse-phase column with low silanol activity.

Select options
Application Analytes:
Benzyl diethyl phosphite
The result was obtained by a proprietary SIELC algorithm. It may deviate from the actual experimental data. The experimental data are available upon request. Contact us by e-mail: or by phone: 847-229-2629.