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143774

Sigma-Aldrich

2-Pentene (mixture of cis and trans)

99%

Synonym(s):

β-Amylene, β-n-Amylene, 1-Methyl-2-ethylethylene, 3-Pentene, sym-Methylethylethylene

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About This Item

Linear Formula:
CH3CH2CH=CHCH3
CAS Number:
109-68-2
Molecular Weight:
70.13
Beilstein/REAXYS Number:
969151
EC Number:
203-695-0
MDL number:
MFCD00009384
UNSPSC Code:
12352100
PubChem Substance ID:
24848610
NACRES:
NA.22

vapor pressure

8.06 psi ( 20 °C)

assay

99%

form

liquid

refractive index

n20/D 1.38 (lit.)

bp

37 °C (lit.)

density

0.65 g/mL at 25 °C (lit.)

storage temp.

2-8°C

SMILES string

CCC=CC

InChI

1S/C5H10/c1-3-5-4-2/h3,5H,4H2,1-2H3/b5-3+

InChI key

QMMOXUPEWRXHJS-HWKANZROSA-N

Related Categories

General description

2-Pentene undergoes addition reaction with phenoxathiin cation radical in acetonitrile solution to form bis(10-phenoxathiiniumyl)alkane adducts.

Application

2-Pentene (mixture of cis and trans) was used in the synthesis of polycyclopentene by ring-opening metathesis polymerization.

pictograms

FlameHealth hazard
GHS02,GHS08

signalword

Danger

hcodes

H225,H304

Hazard Classifications

Asp. Tox. 1 - Flam. Liq. 2

Storage Class

3 - Flammable liquids

wgk_germany

WGK 3

flash_point_f

-49.0 °F - closed cup

flash_point_c

-45 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Synthesis of narrow-distribution polycyclopentene using a ruthenium ring-opening metathesis initiator.
Myers SB and Register RA.
Polymer, 49(4), 877-882 (2008)
Bing-Jun Zhao et al.
The Journal of organic chemistry, 72(16), 6154-6161 (2007-07-03)
Addition of phenoxathiin cation radical (PO*+) to acyclic alkenes in acetonitrile (MeCN) solution occurred stereospecifically to form bis(10-phenoxathiiniumyl)alkane adducts. Stereospecific trans addition is ascribed to the intermediacy of an episulfonium cation radical. The alkenes used were cis- and trans-2-butene, cis-

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