Diethyl sulfoxide

Diethyl sulfoxide
Names
	Preferred IUPAC name (Ethanesulfinyl)ethane
	Other names DESO, diethyl sulphoxide, ethyl sulfoxide, 1,1'-sulfinylbisethane
Identifiers
CAS Number	70-29-1 ;
3D model (JSmol)	Interactive image;
ChEMBL	ChEMBL174477 ;
ChemSpider	6027 ;
ECHA InfoCard	100.000.666
PubChem CID	6263;
UNII	030Z61382M ;
CompTox Dashboard (EPA)	DTXSID70220253 ;
	InChI InChI=1S/C4H10OS/c1-3-6(5)4-2/h3-4H2,1-2H3 Key: CCAFPWNGIUBUSD-UHFFFAOYSA-N ; InChI=1/C4H10OS/c1-3-6(5)4-2/h3-4H2,1-2H3 Key: CCAFPWNGIUBUSD-UHFFFAOYAI;
	SMILES O=S(CC)CC;
Properties
Chemical formula	C4H10OS
Molar mass	106.18 g·mol−1
Appearance	colorless viscous liquid
Density	1.066 g/cm3
Melting point	14 °C (57 °F; 287 K)
Hazards
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	5650 mg/kg (oral, rat)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Diethyl sulfoxide is the organosulfur compound with the formula (C₂H₅)₂SO. It is closely related to the more common dimethyl sulfoxide.

Diethyl sulfoxide prepared by oxidation of diethyl sulfide.