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M32704

Sigma-Aldrich

2-Methyl-2-butene

≥99%, purified by redistillation

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:
NACRES:
NA.22

vapor density

2.4 (vs air)

Quality Level

vapor pressure

25.09 psi ( 55 °C)
7.66 psi ( 20 °C)

assay

≥99%

purified by

redistillation

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.)

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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Application

2-Methyl-2-butene can be used:
  • For the cross metathesis reaction to form compounds with prenyl-type double bonds: methyl 10-methylundec-9-enoate, 2-methylundec-2-ene
[01] and 8-prenylcoumarins.[02]
  • As a model of C5-branched alkene fuel to study the high-temperature kinetics of branched alkenes in a combustion environment.
  • [03]
  • As an additive along with pyridine for partial hydrogenation of poly-ynes to form ω-hydroxy polyunsaturated fatty acids.
  • [04]

    Packaging

    100, 500 mL in Sure-Pac™

    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

    Enter Lot Number to search for Certificate of Analysis (COA).

    Certificate of Origin

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