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443018

Sigma-Aldrich

2,4,4-Trimethyl-1-pentene

96%

Synonym(s):

α-Diisobutylene, Diisobutylene

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About This Item

Linear Formula:
(CH3)3CCH2C(CH3)=CH2
CAS Number:
107-39-1
Molecular Weight:
112.21
Beilstein:
1098309
EC Number:
203-486-4
MDL number:
MFCD00008855
UNSPSC Code:
12352100
PubChem Substance ID:
24868041
NACRES:
NA.22

vapor density

>3.8 (vs air)

vapor pressure

83 mmHg ( 37.7 °C)

Assay

96%

form

liquid

autoignition temp.

736 °F

expl. lim.

4.8 %

refractive index

n20/D 1.408 (lit.)

bp

101-102 °C (lit.)

density

0.708 g/mL at 25 °C (lit.)

SMILES string

CC(=C)CC(C)(C)C

InChI

1S/C8H16/c1-7(2)6-8(3,4)5/h1,6H2,2-5H3

InChI key

FXNDIJDIPNCZQJ-UHFFFAOYSA-N

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General description

2,4,4-Trimethyl-1-pentene is a α-alkene. It is the main dimeric product of isobutene. Ozonolysis of 2,4,4-trimethyl-1-pentene has been investigated in a flow reactor under pseudo-first-order conditions. Hydrocracking (HCG) of 2,4,4-trimethyl-1-pentene has been employed as a model test reaction to investigate the catalytic functionalities of sulfided CoMo catalysts. Liquid phase oxidation of 2,4,4-trimethyl-1-pentene with molecular xygen afforded epoxides and hydrogen peroxides.

Pictograms

FlameEnvironment
GHS02,GHS09

Signal Word

Danger

Hazard Statements

H225,H411

Hazard Classifications

Aquatic Chronic 2 - Flam. Liq. 2

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

25.0 °F - closed cup

Flash Point(C)

-3.9 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, 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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Catalytic functionalities of supported sulfides: I. Effect of support and additives on the CoMo catalyst.
Muralidhar G, et al.
J. Catal., 85(1), 44-52 (1984)
Reaction equilibrium in the isomerization of 2, 4, 4-trimethyl pentenes.
Karinen RS, et al.
Industrial & Engineering Chemistry Research, 40(4), 1011-1015 (2001)
The origin of epoxides in the liquid phase oxidation of olefins with molecular oxygen.
Brill WF.
Journal of the American Chemical Society, 85(2), 141-145 (1963)
Diisobutylene.
American Industrial Hygiene Association journal, 43(1), B83-B84 (1982-01-01)
Marius Duncianu et al.
The journal of physical chemistry. A, 116(24), 6169-6179 (2012-01-25)
A new flow reactor has been developed to study ozonolysis reactions at ambient pressure and room temperature (297 ± 2 K). The reaction kinetics of O(3) with 4-methyl-1-pentene (4M1P), 2-methyl-2-pentene (2M2P), 2,4,4-trimethyl-1-pentene (tM1P), 2,4,4-trimethyl-2-pentene (tM2P) and α-pinene have been investigated

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