Cyclobutanone

Cyclobutanone
Names
	Preferred IUPAC name Cyclobutanone
Identifiers
CAS Number	1191-95-3;
3D model (JSmol)	Interactive image;
ChemSpider	13840;
ECHA InfoCard	100.013.405
PubChem CID	14496;
UNII	6PF2SH405U;
CompTox Dashboard (EPA)	DTXSID9061592 ;
	InChI InChI=1S/C4H6O/c5-4-2-1-3-4/h1-3H2 Key: SHQSVMDWKBRBGB-UHFFFAOYSA-N;
	SMILES O=C1CCC1;
Properties
Chemical formula	C4H6O
Molar mass	70.091 g·mol−1
Appearance	Colorless liquid
Density	0.9547 g/cm3 (0 °C)
Melting point	−50.9 °C (−59.6 °F; 222.2 K)
Boiling point	99.75 °C (211.55 °F; 372.90 K)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Cyclobutanone is an organic compound with molecular formula (CH₂)₃CO. It is a four-membered cyclic ketone (cycloalkanone). It is a colorless volatile liquid at room temperature. Since cyclopropanone is highly sensitive, cyclobutanone is the smallest easily handled cyclic ketone.

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