Selenophene

Selenophene
Names
	Preferred IUPAC name Selenophene
Identifiers
CAS Number	288-05-1;
Beilstein Reference	103223
ChEBI	CHEBI:30857;
ChemSpider	119907;
ECHA InfoCard	100.157.009
Gmelin Reference	100994
PubChem CID	136130;
UNII	UYZ3M5T8L7;
CompTox Dashboard (EPA)	DTXSID20182978 ;
	InChI InChI=1S/C4H4Se/c1-2-4-5-3-1/h1-4H Key: MABNMNVCOAICNO-UHFFFAOYSA-N;
	SMILES C1=C[Se]C=C1;
Properties
Chemical formula	C4H4Se
Molar mass	131.047 g·mol−1
Appearance	colorless liquid
Density	1.52 g/cm3
Melting point	−38 °C (−36 °F; 235 K)
Boiling point	110 °C (230 °F; 383 K)
Refractive index (nD)	1.58
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H225, H301, H331, H373, H410
Precautionary statements	P210, P233, P240, P241, P242, P243, P260, P261, P264, P270, P271, P273, P280, P301+P310, P303+P361+P353, P304+P340, P311, P314, P321, P330, P370+P378, P391, P403+P233, P403+P235, P405, P501
Related compounds
Related more saturated	selenolane; 2-selenolene; 3-selenolene
Related compounds	furan; thiophene; tellurophene
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Selenophene is an organic compound with the chemical formula C₄H₄Se. It is an unsaturated compound containing a five-member ring with four carbon atoms and one selenium atom. It is a selenium analog of furan C₄H₄O and thiophene C₄H₄S. A colorless liquid, it is one of the more common selenium heterocycles.