Diethylphosphite

Diethylphosphite
Names
	Preferred IUPAC name Diethyl phosphonate
	Other names diethyl phosphonite; DEP; Phosphonic acid, diethyl ester
Identifiers
CAS Number	762-04-9 ;
3D model (JSmol)	Interactive image;
Beilstein Reference	4-01-00-01329
ChemSpider	12437;
ECHA InfoCard	100.010.992
PubChem CID	12977;
UNII	U9X9YBA22W ;
CompTox Dashboard (EPA)	DTXSID9041861 ;
	InChI InChI=1S/C4H11O3P/c1-3-6-8(5)7-4-2/h5H,3-4H2,1-2H3 Key: SULWMEGSVQCTSK-UHFFFAOYSA-N;
	SMILES CCOP(O)OCC;
Properties
Chemical formula	C4H11O3P
Molar mass	138.103 g·mol−1
Appearance	colorless liquid
Density	1.072 g/cm3
Boiling point	50-51 °C at 2 mm Hg
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Diethyl phosphite is the organophosphorus compound with the formula (C₂H₅O)₂P(O)H. It is a popular reagent for generating other organophosphorus compounds, exploiting the high reactivity of the P-H bond. Diethyl phosphite is a colorless liquid. The molecule is tetrahedral.

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