Diethyl sulfite

Diethyl sulfite

Names
IUPAC name 1-Ethoxysulfinyloxyethane
Other names Diethyl sulphite Sulfurous acid, diethyl ester
Identifiers
CAS Number	623-81-4 Y
3D model (JSmol)	Interactive image Interactive image
ChemSpider	11697 Y
ECHA InfoCard	100.009.832
EC Number	210-815-5
PubChem CID	12197
InChI InChI=1S/C4H10O3S/c1-3-6-8(5)7-4-2/h3-4H2,1-2H3 Y Key: NVJBFARDFTXOTO-UHFFFAOYSA-N Y InChI=1/C4H10O3S/c1-3-6-8(5)7-4-2/h3-4H2,1-2H3 Key: NVJBFARDFTXOTO-UHFFFAOYAE
SMILES CCOS(=O)OCC O=S(OCC)OCC
Properties
Chemical formula	C4H10O3S
Molar mass	138.18 g·mol−1
Appearance	Clear liquid
Density	1.88 g/cm3
Boiling point	158 to 160 °C (316 to 320 °F; 431 to 433 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Y  (what is YN ?)
Infobox references

Diethyl sulfite (C₄H₁₀O₃S) is an ester of sulfurous acid. Among other properties, diethyl sulfite inhibits the growth of mold spores during grain storage.

Diethyl sulfite is used as an additive in some polymers to prevent oxidation.