My watch list  

Trimethyl phosphite

Trimethyl phosphite
IUPAC name Trimethyl phosphite
Other names Trimethoxyphosphine
CAS number 121-45-9
Molecular formula C3H9O3P
Molar mass 124.08
Appearance colorless liquid
Density 1.052
Melting point

-78 °C, 195 K, -108 °F

Boiling point

111-112 °C, 272 K, -59 °F

Solubility in water organic solvents
Except where noted otherwise, data are given for
materials in their standard state
(at 25 °C, 100 kPa)

Infobox disclaimer and references

Trimethylphosphite is an organophosphorus compound with the formula P(OCH3)3, often abbreviated P(OMe)3. This colorless liquid is used as a ligand in organometallic chemistry and as a reagent in organic synthesis. The molecule features a pyramidal phosphorus(III) center bound to three methoxide groups.

A representative derivative is the colorless compound Ni(P(OMe)3)4 (m.p. 108 °C).[1]


  1. ^ Ittel, Steven D. (1990). "Complexes of Nickel(0)". Inorganic Syntheses 28: 98--104. doi:0-471-52619-3.
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Trimethyl_phosphite". A list of authors is available in Wikipedia.
Your browser is not current. Microsoft Internet Explorer 6.0 does not support some functions on Chemie.DE