Cyclopentene

Cyclopentene

Names
IUPAC name Cyclopentene
Identifiers
CAS Number	142-29-0 Y
3D model (Jmol)	Interactive image
ChEBI	CHEBI:49155 Y
ChemSpider	8544 Y
ECHA InfoCard	100.005.030
PubChem CID	8882
InChI InChI=1S/C5H8/c1-2-4-5-3-1/h1-2H,3-5H2 Y Key: LPIQUOYDBNQMRZ-UHFFFAOYSA-N Y 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	3 1 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).
N  (what is YN ?)
Infobox references

Cyclopentene is a chemical compound with the formula C₅H₈. It is a colorless liquid with a petrol-like odor. It is one of the cycloalkenes.

Cyclopentene is produced industrially in large amounts. It is used as a monomer for synthesis of plastics, and in a number of chemical syntheses.

It can be obtained from vinylcyclopropane in the vinylcyclopropane-cyclopentene rearrangement.