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86262

Sigma-Aldrich

2-Methyl-2-butene

≥95.0% (GC)

Synonym(s):
β-Isoamylene, Amylene
Linear Formula:
CH3CH=C(CH3)2
CAS Number:
Molecular Weight:
70.13
Beilstein:
1361353
EC Number:
MDL number:
PubChem Substance ID:

vapor density

2.4 (vs air)

Quality Level

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.)

SMILES string

C\C=C(\C)C

InChI

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

InChI key

BKOOMYPCSUNDGP-UHFFFAOYSA-N

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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.[44] The impact of active chlorine on photo-oxidation of 2-methyl-2-butene was studied.[98] Photosensitized oxidation of 2-methyl-2-butene adsorbed on internal framework of Na-ZSM-5 zeolite was studied.[01] Gas-phase reaction of 2-methyl-2-butene with ozone has been investigated.[02] Kinetics of liquid-phase alkylation of 3-methylthiophene with 2-methyl-2-butene on supported phosphoric acid has been reported.[45]

Application

2-Methyl-2-butene may be employed as precursor for peroxyacetyl nitrate for the calibration purposes.[02]

Packaging

50, 250 mL in glass bottle
1 L in glass bottle

Signal Word

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 Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

-4.0 °F

Flash Point(C)

-20 °C

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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