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Sigma-Aldrich

2-Methylbutane

ReagentPlus®, ≥99%

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Synonym(s):
Isopentane
Linear Formula:
CH3CH2CH(CH3)2
CAS Number:
78-78-4
Molecular Weight:
72.15
Beilstein:
1730723
EC Number:
201-142-8
MDL number:
MFCD00009338
PubChem Substance ID:
329753976
NACRES:
NA.21

vapor density

2.6 (vs air)

Quality Level

100

vapor pressure

11.17 psi ( 20 °C)

product line

ReagentPlus®

Assay

≥99%

form

liquid

autoignition temp.

788 °F

expl. lim.

8.3 %

refractive index

n20/D 1.354 (lit.)

bp

30 °C (lit.)

mp

-160 °C

density

0.62 g/mL at 25 °C (lit.)

storage temp.

2-8°C

SMILES string

CCC(C)C

InChI

1S/C5H12/c1-4-5(2)3/h5H,4H2,1-3H3

InChI key

QWTDNUCVQCZILF-UHFFFAOYSA-N

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General description

2-Methylbutane is a branched-chain alkane that is used as a solvent in the production of chlorinated derivatives, a blowing agent for polystyrene, and a chemical building block in organic synthesis. It can be derived from petroleum raw materials natural gas and crude oil.

Application

2-Methylbutane can be used as a solvent in the Lewis-acid catalyzed oligomerization of lower olefins.

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

Signal Word

Danger

Hazard Statements

H224 - H304 - H336 - H411

Hazard Classifications

Aquatic Chronic 2 - Asp. Tox. 1 - Flam. Liq. 1 - STOT SE 3

Target Organs

Central nervous system

Supplementary Hazards

EUH066

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

-59.8 °F - closed cup

Flash Point(C)

-51 °C - closed cup

Regulatory Information

危险化学品

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Selective oligomerization of isobutene on lewis acid catalyst: kinetic modeling
Sarkar A, et al.
Industrial & Engineering Chemistry Research, 53, 18982-18992 (2014)
A study of micronucleus induction with methyl formate and 2-Methylbutane in bone marrow cells of male ICR mice
Kim S, et al.
Safety and health at work, 1, 80-86 (2010)
Carles Tapias-Espinosa et al.
Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 44(11), 1975-1984 (2019-04-16)
Prepulse inhibition (PPI) of startle response is a measure of sensorimotor gating that is impaired in schizophrenia and in many other clinical conditions. Rat models using pharmacological or surgical strategies reveal that PPI is modulated by the cortico-striatal-pallido-thalamic (CSPT) circuit.
Wook-Joon Yu et al.
Regulatory toxicology and pharmacology : RTP, 60(1), 136-143 (2011-03-23)
This study investigated the potential reproductive toxicity of 2-methylbutane in a one-generation reproductive toxicity study using Sprague-Dawley rats. A total of 24 male and female rats per group were given 2-methylbutane by gavage at 0, 100, 300, and 1000 mg/kg/day.
Benedikt Galliker et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 15(25), 6161-6168 (2009-05-14)
We have identified two intermediates in the autoxidation of NO*: ONOO*, which was detected by EPR spectroscopy at 295 K and atmospheric pressure in the gas phase, and ONOONO, a red substance produced at 113 K in 2-methylbutane. The red
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