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Merck
CN

86262

2-Methyl-2-butene

≥95.0% (GC)

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:
57653087
EC Number:
208-156-3
Beilstein/REAXYS Number:
1361353
MDL number:
MFCD00009276

Key Documents

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Product Name

2-Methyl-2-butene, ≥95.0% (GC)

InChI key

BKOOMYPCSUNDGP-UHFFFAOYSA-N

InChI

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

SMILES string

C\C=C(\C)C

vapor density

2.4 (vs air)

assay

≥95.0% (GC)

form

liquid

expl. lim.

8.7 %

refractive index

n20/D 1.385 (lit.)
n20/D 1.388

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 is a trisubstituted olefin. It acts as guest and forms stable solid host-guest complexes with self-assembled benzophenone bis-urea macrocycles. The impact of active chlorine on photo-oxidation of 2-methyl-2-butene was studied. Photosensitized oxidation of 2-methyl-2-butene adsorbed on internal framework of Na-ZSM-5 zeolite was studied. Gas-phase reaction of 2-methyl-2-butene with ozone has been investigated. Kinetics of liquid-phase alkylation of 3-methylthiophene with 2-methyl-2-butene on supported phosphoric acid has been reported.

2-methyl-2-butene undergoes ultraviolet irradiation, leading to the formation of trimethylene oxides.

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

危险化学品
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Certificates of Analysis (COA)

Lot/Batch Number
BCCP0504
BCCN4737
BCCM9714
BCCM1561
BCCL2203

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Light-catalyzed organic reactions. I. The reaction of carbonyl compounds with 2-methyl-2-butene in the presence of ultraviolet light
Buchi G, et al.
Journal of the American Chemical Society, 76, 4327-4331 (1954)
Light-catalyzed organic reactions. I. The reaction of carbonyl compounds with 2-methyl-2-butene in the presence of ultraviolet light
Buchi G, et al.
Journal of the American Chemical Society, 76, 4327-4331 (1954)
Kinetics and mechanism of liquid-phase alkylation of 3-methylthiophene with 2-methyl-2-butene over a solid phosphoric acid.
Belliere V, et al.
Applied Catalysis. B, Environmental, 64(3), 254-261 (2006)
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)
Mehdi Nabi et al.
Journal of AOAC International, 103(5), 1243-1249 (2020-11-27)
A simple, rapid, selective and sensitive sample preparation and derivatization method was performed for determination of bromate ions in water by means of dispersive liquid-liquid extraction (DLLE) by gas chromatography-electron capture detection (GC-ECD). This method is based on 2-methyl-2-butene derivatization
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