344508

Cyclopentene

96%

• Synonym(s): 2,2-Dimethylacetyl chloride
• Empirical Formula (Hill Notation): C₅H₈
• CAS Number: 142-29-0
• Molecular Weight: 68.12
• Beilstein/REAXYS Number: 635707
• EC Number: 205-532-9
• MDL number: MFCD00001394
• UNSPSC Code: 12352100
• PubChem Substance ID: 24861258
• NACRES: NA.22

Properties

• vapor pressure: 20.89 psi ( 55 °C); 6.11 psi ( 20 °C)
• assay: 96%
• form: liquid
• autoignition temp.: 743 °F
• refractive index: n20/D 1.421 (lit.)
• bp: 44-46 °C (lit.)
• mp: −135 °C (lit.)
• solubility: water: soluble 0.535 g/L at 25 °C
• density: 0.771 g/mL at 25 °C (lit.)
• storage temp.: 2-8°C
• SMILES string: C1CC=CC1
• InChI: 1S/C5H8/c1-2-4-5-3-1/h1-2H,3-5H2
• InChI key: LPIQUOYDBNQMRZ-UHFFFAOYSA-N

Description

General description

Cyclopentene is a cyclo-olefin. Neopentyl phosphine ligand catalyzed Heck coupling of cyclopentene has been reported. Mechanism of reaction of ground state oxygen atom with cyclopentene has been investigated. Homopolymerization of cyclopentene has been reported. Photocatalytic oxidation of cyclopentene over various titanium(IV) oxide catalyst has been reported.

Application

Cyclopentene was used to investigate the [2+2] cycloaddition of diamond (001) surfaces with alkene.

Safety Information

• pictograms: GHS02,GHS08,GHS07
• signalword: Danger
• hcodes: H225,H302 + H312,H304,H315
• pcodes: P210 - P233 - P280 - P301 + P310 - P303 + P361 + P353 - P331
• Hazard Classifications: Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Asp. Tox. 1 - Flam. Liq. 2 - Skin Irrit. 2
• Storage Class: 3 - Flammable liquids
• wgk_germany: WGK 2
• flash_point_f: -29.9 °F - closed cup
• flash_point_c: -34.4 °C - closed cup
• ppe: Eyeshields, Faceshields, Gloves