Diethyl sulfate

Diethyl sulfate
Names
	Preferred IUPAC name Diethyl sulfate
	Other names Sulfuric acid diethyl ester
Identifiers
CAS Number	64-67-5 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:34699;
ChEMBL	ChEMBL163100 ;
ChemSpider	5931 ;
ECHA InfoCard	100.000.536
KEGG	C14706 ;
PubChem CID	6163;
RTECS number	WS7875000;
UNII	K0FO4VFA7I ;
CompTox Dashboard (EPA)	DTXSID1024045 ;
	InChI InChI=1S/C4H10O4S/c1-3-7-9(5,6)8-4-2/h3-4H2,1-2H3 Key: DENRZWYUOJLTMF-UHFFFAOYSA-N ; InChI=1/C4H10O4S/c1-3-7-9(5,6)8-4-2/h3-4H2,1-2H3 Key: DENRZWYUOJLTMF-UHFFFAOYAR;
	SMILES O=S(=O)(OCC)OCC;
Properties
Chemical formula	C4H10O4S
Molar mass	154.18 g·mol−1
Appearance	Colorless liquid
Density	1.2 g/mL
Melting point	−25 °C (−13 °F; 248 K)
Boiling point	209 °C (408 °F; 482 K) (decomposes)
Solubility in water	decomposes in water
Vapor pressure	0.29 mm Hg
Magnetic susceptibility (χ)	−86.8·10−6 cm3/mol
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H302, H312, H314, H332, H340, H350
Precautionary statements	P201, P202, P260, P261, P264, P270, P271, P280, P281, P301+P312, P301+P330+P331, P302+P352, P303+P361+P353, P304+P312, P304+P340, P305+P351+P338, P308+P313, P310, P312, P321, P322, P330, P363, P405, P501
NFPA 704 (fire diamond)	3 1 1
Flash point	104 °C (219 °F; 377 K)
Related compounds
Related compounds	Dimethyl sulfate; diethyl sulfite
	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 sulfate (DES) is an organosulfur compound with the formula (C₂H₅)₂SO₄. It occurs as a colorless, oily liquid with a faint peppermint odor. It is toxic, combustible, and likely carcinogenic chemical compound. Diethyl sulfate is used as an ethylating agent.