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Merck
CN

443018

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
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
24868041
EC Number:
203-486-4
Beilstein/REAXYS Number:
1098309
MDL number:
MFCD00008855
Assay:
96%
Form:
liquid

Key Documents

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InChI key

FXNDIJDIPNCZQJ-UHFFFAOYSA-N

InChI

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

SMILES string

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

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 %

Quality Level

100

bp

101-102 °C (lit.)

density

0.708 g/mL at 25 °C (lit.)

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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

signalword

Danger

hcodes

H225,H411

Hazard Classifications

Aquatic Chronic 2 - Flam. Liq. 2

Storage Class

3 - Flammable liquids

wgk

WGK 3

flash_point_f

25.0 °F - closed cup

flash_point_c

-3.9 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Regulatory Information

危险化学品
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Certificates of Analysis (COA)

Lot/Batch Number
MKCX6405
MKCW6374
MKCR4151
MKCQ4729
MKCM2816

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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)
Reaction equilibrium in the isomerization of 2, 4, 4-trimethyl pentenes.
Karinen RS, et al.
Industrial & Engineering Chemistry Research, 40(4), 1011-1015 (2001)
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)
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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