Carbonyl selenide

Carbonyl selenide
Names
	Preferred IUPAC name Selanylidenemethanone
Identifiers
CAS Number	1603-84-5;
3D model (JSmol)	Interactive image;
ChemSpider	120807;
PubChem CID	137100;
CompTox Dashboard (EPA)	DTXSID80166855 ;
	InChI InChI=1S/COSe/c2-1-3 Key: RQZJHKMUYSXABM-UHFFFAOYSA-N;
	SMILES [Se]=C=O;
Properties
Chemical formula	COSe
Molar mass	106.981 g·mol−1
Appearance	Colorless gas
Odor	Unpleasant
Boiling point	−22 °C (−8 °F; 251 K)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Carbonyl selenide is a chemical compound with the chemical formula O=C=Se. It is a linear molecule that is primarily of interest for research purposes.