Cyclopentene

Cyclopentene
Names
	Preferred IUPAC name Cyclopentene
Identifiers
CAS Number	142-29-0 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:49155 ;
ChEMBL	ChEMBL1797299 ;
ChemSpider	8544 ;
ECHA InfoCard	100.005.030
PubChem CID	8882;
UNII	ONM2CKV81Z ;
CompTox Dashboard (EPA)	DTXSID6029171 ;
	InChI InChI=1S/C5H8/c1-2-4-5-3-1/h1-2H,3-5H2 Key: LPIQUOYDBNQMRZ-UHFFFAOYSA-N ; InChI=1/C5H8/c1-2-4-5-3-1/h1-2H,3-5H2 Key: LPIQUOYDBNQMRZ-UHFFFAOYAS;
	SMILES C1CC=CC1;
Properties
Chemical formula	C5H8
Molar mass	68.11 g/mol
Density	0.771 g/cm3
Melting point	−135 °C (−211 °F; 138 K)
Boiling point	44 to 46 °C (111 to 115 °F; 317 to 319 K)
Hazards
NFPA 704 (fire diamond)	1 3 1
Flash point	−29 °C (−20 °F; 244 K)
Related compounds
Related compounds	Cyclopentadiene; Cyclobutene
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Cyclopentene is a chemical compound with the formula (CH₂)₃(CH)₂. It is a colorless liquid with a petrol-like odor. It has few applications, and thus is mainly used as a minor component of gasoline, present in concentrations of less than 1%. It is one of the principal cycloalkenes.

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