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Merck
CN

379263

2-Methyl-2-butene

technical grade, 90%

Synonym(s):

β-Isoamylene, Amylene

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About This Item

Linear Formula:
CH3CH=C(CH3)2
CAS Number:
513-35-9
Molecular Weight:
70.13
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
57649728
EC Number:
208-156-3
Beilstein/REAXYS Number:
1361353
MDL number:
MFCD00009276

Key Documents

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Product Name

2-Methyl-2-butene, technical grade, 90%

InChI key

BKOOMYPCSUNDGP-UHFFFAOYSA-N

InChI

1S/C5H10/c1-4-5(2)3/h4H,1-3H3

SMILES string

C\C=C(\C)C

grade

technical grade

vapor density

2.4 (vs air)

vapor pressure

25.7 psi ( 55 °C)
7.95 psi ( 20 °C)

assay

90%

form

liquid

expl. lim.

8.7 %

refractive index

n20/D 1.385 (lit.)

bp

35-38 °C (lit.)

mp

−134 °C (lit.)

density

0.662 g/mL at 25 °C (lit.)

Quality Level

100

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Application

2-Methyl-2-butene may be employed as precursor for peroxyacetyl nitrate for the calibration purposes.

General description

2-Methyl-2-butene (β-Isoamylene, Amylene) is a trisubstituted olefin. It acts as guest and forms stable solid host-guest complexes with self-assembled benzophenone bis-urea macrocycles. The effect of active chlorine formulations on photodecomposition of 2-methyl-2-butene has been studied. Its reaction with ozone in gas-phase has been reported to afford carbonym derivatives.

Other Notes

Brass hose adapter Z146811 or brass body mini gas regulator Z513539 is recommended.

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 2 - Asp. Tox. 1 - Flam. Liq. 1 - Muta. 2 - STOT SE 3

target_organs

Central nervous system

Storage Class

3 - Flammable liquids

wgk

WGK 3

flash_point_f

-4.0 °F

flash_point_c

-20 °C

ppe

Eyeshields, Faceshields, Gloves

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
SHBJ4386
SHBG5722V
SHBD5063V
SHBD0364V
SHBC7358V

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Gas-phase reaction of ozone with 2-methyl-2-butene: Dicarbonyl formation from Criegee biradicals.
Grosjean D.
Environmental Science & Technology, 24(9), 1428-1432 (1990)
Michael F Geer et al.
The Journal of organic chemistry, 78(11), 5568-5578 (2013-05-16)
This manuscript investigates how incorporation of benzophenone, a well-known triplet sensitizer, within a bis-urea macrocycle, which self-assembles into a columnar host, influences its photophysical properties and affects the reactivity of bound guest molecules. We further report the generation of a
Yunseok Im et al.
The Science of the total environment, 409(13), 2652-2661 (2011-04-29)
Active chlorine comprising hypochlorite (OCl⁻), hypochlorous acid (HOCl) and chlorine (Cl₂) is the active constituent in bleach formulations for a variety of industrial and consumer applications. However, the strong oxidative reactivity of active chlorine can cause adverse effects on both
Yu-Zhe Chen et al.
The Journal of organic chemistry, 70(12), 4676-4681 (2005-06-04)
Photosensitized oxidation of trialkylalkenes 2-methyl-2-pentene (1), 1-methylcyclohexene (2), trans-3-methyl-2-pentene (3), cis-3-methyl-2-pentene (4), and 2-methyl-2-butene (5) included in the internal framework of Na-ZSM-5 zeolites was investigated. The zeolite samples having adsorbed the alkenes were suspended in isooctane, and the sensitizer, tetraphenylporphyrin
Charles K Westbrook et al.
The journal of physical chemistry. A, 119(28), 7462-7480 (2015-03-31)
Two experimental studies have been carried out on the oxidation of 2-methyl-2-butene, one measuring ignition delay times behind reflected shock waves in a stainless steel shock tube, and the other measuring fuel, intermediate, and product species mole fractions in a
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