Sulfolene

Sulfolene
Names
	Preferred IUPAC name 2,5-Dihydro-1H-1λ6-thiophene-1,1-dione
	Other names 2,5-Dihydrothiophene 1,1-dioxide; Butadiene sulfone; 3-Sulfolene
Identifiers
CAS Number	77-79-2 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:194619;
ChEMBL	ChEMBL3182104;
ChemSpider	6253;
ECHA InfoCard	100.000.964
EC Number	201-059-7;
PubChem CID	6498;
UNII	Z6003L44MN ;
CompTox Dashboard (EPA)	DTXSID6021294 ;
	InChI InChI=1S/C4H6O2S/c5-7(6)3-1-2-4-7/h1-2H,3-4H2 Key: MBDNRNMVTZADMQ-UHFFFAOYSA-N;
	SMILES C1C=CCS1(=O)=O;
Properties
Chemical formula	C4H6O2S
Molar mass	118.15 g·mol−1
Melting point	65 to 66 °C (149 to 151 °F; 338 to 339 K)
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H318
Precautionary statements	P264+P265, P280, P305+P351+P338, P305+P354+P338, P317, P337+P317
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Sulfolene, or butadiene sulfone is a cyclic organic chemical with a sulfone functional group. It is a white, odorless, crystalline, indefinitely storable solid, which dissolves in water and many organic solvents. The compound is used as a source of butadiene.