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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:
Molecular Weight:
70.13
Beilstein:
969151
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

vapor pressure

8.06 psi ( 20 °C)

Quality Level

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

Signal Word

Danger

Hazard Statements

Precautionary Statements

Hazard Classifications

Asp. Tox. 1 - Flam. Liq. 2

WGK

WGK 3

Flash Point(F)

closed cup

Flash Point(C)

closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

危险化学品

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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