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Safety Information

M32631

Sigma-Aldrich

2-Methylbutane

ReagentPlus®, ≥99%

Synonym(s):

Isopentane

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About This Item

Linear Formula:
CH3CH2CH(CH3)2
CAS Number:
78-78-4
Molecular Weight:
72.15
Beilstein:
1730723
EC Number:
201-142-8
MDL number:
MFCD00009338
UNSPSC Code:
12191502
PubChem Substance ID:
329817967
NACRES:
NA.21
Assay:
≥99%
bp:
30 °C (lit.)
vapor pressure:
11.17 psi ( 20 °C)

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 flammable and highly volatile aliphatic hydrocarbon used as a solvent in organic synthesis. It is also used to flash-freeze biological samples in conjunction with dry ice or liquid nitrogen.

Application

2-Methylbutane can be used as:      
  • A reactant to synthesize isoprene by a two-stage dehydrogenation process using chromia-alumina catalyst.     
  • A weakly polar solvent to study the intramolecular charge transfer (ICT) effect and the solvatochromic behavior of the pyrene substituted 1,3,4-oxadiazole derivatives.

Other Notes

The article number M32631-4X1L will be discontinued. Please order the single bottle M32631-1L which is physically identical with the same exact specifications.

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 Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

FSL

Group 4: Flammable liquids
Special flammables
Hazardous rank I

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

M32631-VAR:
M32631-4X1L:
M32631-1L:
M32631-25ML:
M32631-4L:4548173955865
M32631-2.5L:
M32631-BULK:
M32631-500ML:4548173955872

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Certificates of Analysis (COA)

Lot/Batch Number
SDBB2220
SHBS4013
SHBR9711
SHBR9710
SHBS2402

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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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