Triethyl phosphate

Triethyl phosphate structural formula

CAS Number78-40-0
Molecular FormulaC6H15O4P
Molecular Weight182.157
  • Triethyl phosphate
  • Phosphoric acid, triethyl ester
  • 78-40-0
  • Phosphoric acid, triethyl ester
  • Ethyl phosphate
  • fosfato de trietilo
  • Levagard TEP
  • NSC 2677
  • Phosphate de triethyle
  • Phosphoric acid triethyl ester
  • Triethoxyphosphine oxide
  • Triethylphosphat
  • BRN 1705772
  • EINECS 201-114-5
  • Triethylfosfat
  • TEP
  • Triethylphosphate
  • Tris(ethyl) phosphate
  • o-Phosphoric acid triethyl ester


Separation of Triethyl phosphate on Newcrom R1 HPLC column

May 16, 2018
Separation of Triethyl phosphate on Newcrom R1 HPLC column

Triethyl phosphate 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:
Triethyl phosphate
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.