344508
Cyclopentene
96%
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About This Item
Empirical Formula (Hill Notation):
C5H8
CAS Number:
Molecular Weight:
68.12
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
EC Number:
205-532-9
Beilstein/REAXYS Number:
635707
MDL number:
Assay:
96%
Form:
liquid
form
liquid
InChI key
LPIQUOYDBNQMRZ-UHFFFAOYSA-N
InChI
1S/C5H8/c1-2-4-5-3-1/h1-2H,3-5H2
SMILES string
C1CC=CC1
vapor pressure
20.89 psi ( 55 °C), 6.11 psi ( 20 °C)
assay
96%
autoignition temp.
743 °F
Quality Level
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
Related Categories
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.
signalword
Danger
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
WGK 2
flash_point_f
-29.9 °F - closed cup
flash_point_c
-34.4 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves
Regulatory Information
危险化学品
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Stereospecific homopolymerization of cyclopentene.
Natta G, et al.
Angewandte Chemie (International Edition in English), 3(11), 723-729 (1964)
Hongmei Zhao et al.
Journal of molecular graphics & modelling, 51, 184-192 (2014-06-18)
The reaction mechanism of the ground state oxygen atom O((3)P) with cyclopentene is investigated theoretically. The triplet and singlet potential energy surfaces are calculated at the CCSD(T)//MP2/6-311G(d,p) level and the minimum energy crossing points (MECPs) between the two surfaces are
Partial photocatalytic oxidation of cyclopentene over titanium (IV) oxide.
Kluson P, et al.
J. Mol. Catal. A: Chem., 242(1), 62-67 (2005)
Cycloaddition chemistry at surfaces: reaction of alkenes with the diamond (001)-2? 1 surface.
Hovis JS, et al.
Journal of the American Chemical Society, 122(4), 732-733 (2000)
Matthew G Lauer et al.
The Journal of organic chemistry, 79(22), 10837-10848 (2014-10-22)
The use of neopentyl phosphine ligands was examined in the coupling of aryl bromides with alkenes. Di-tert-butylneopentylphosphine (DTBNpP) was found to promote Heck couplings with aryl bromides at ambient temperature. In the Heck coupling of cyclic alkenes, the degree of
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