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295450

Sigma-Aldrich

2-Methylpropane

99%

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Synonym(s):
Isobutane
Linear Formula:
(CH3)3CH
CAS Number:
Molecular Weight:
58.12
Beilstein:
1730720
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

vapor density

2.01 (21 °C, vs air)

vapor pressure

72.2 psi ( 37.7 °C)

Assay

99%

autoignition temp.

860 °F

expl. lim.

8.3 %

bp

−12 °C (lit.)

mp

−160 °C (lit.)

density

2.064 g/mL at 25 °C (lit.)

SMILES string

CC(C)C

InChI

1S/C4H10/c1-4(2)3/h4H,1-3H3

InChI key

NNPPMTNAJDCUHE-UHFFFAOYSA-N

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This Item
487627531537539821
2-Methylpropane 99%

Sigma-Aldrich

295450

2-Methylpropane

2-Methylpropane-2-d 98 atom % D

Sigma-Aldrich

487627

2-Methylpropane-2-d

2-Methylpropane 99.995%

Sigma-Aldrich

539821

2-Methylpropane

bp

−12 °C (lit.)

bp

−12 °C (lit.)

bp

50-51 °C (lit.)

bp

−12 °C (lit.)

mp

−160 °C (lit.)

mp

−160 °C (lit.)

mp

-

mp

−160 °C (lit.)

density

2.064 g/mL at 25 °C (lit.)

density

-

density

0.812 g/mL at 25 °C (lit.)

density

2.064 g/mL at 25 °C (lit.)

Quality Level

100

Quality Level

200

Quality Level

200

Quality Level

100

vapor density

2.01 (21 °C, vs air)

vapor density

2.01 (21 °C, vs air)

vapor density

-

vapor density

2.01 (21 °C, vs air)

Application

2-Methylpropane can be used as a starting material to prepare:
  • Isobutylene by catalytic dehydrogenation using various catalysts.
  • Isopropyl methyl ketone by formylation reaction with carbon monoxide in the presence of super acid catalyst.
  • tert-Butylhydroperoxide (TBHP) by oxidation.

Packaging

Supplied in a Sure/Pac cylinder and has a brass needle valve with a male 1/4" NPTF outlet thread installed. Before using the cylinder, ensure that the valve is closed, then remove the galvanized steel hex cap that seals the outlet valve.

Compatible with the following:

Legal Information

Aldrich is a registered trademark of Sigma-Aldrich Co. LLC
Sure/Pac is a trademark of Sigma-Aldrich Co. LLC

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Pictograms

FlameGas cylinder

Signal Word

Danger

Hazard Statements

Precautionary Statements

Hazard Classifications

Flam. Gas 1A - Press. Gas Liquefied gas

Storage Class Code

2A - Gases

WGK

nwg

Flash Point(F)

-117.4 °F - closed cup

Flash Point(C)

-83 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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T1503
Product Number
-
25G
Pack Size/Quantity

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705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

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The production and use of butadiene and isobutylene
Petroleum Chemistry (Neftekhimiya), 112(14), 84-84 (2015)
Effect of catalyst prereduction on the dehydrogenation of isobutane over chromia/alumina
Airaksinen S MK and Krause A OI
Industrial & Engineering Chemistry Research, 44(11), 3862-3868 (2005)
Superacid-Catalyzed Selective Formylation-Rearrangement of Isoalkanes with Carbon Monoxide to Branched Ketones
Olah GA, et al.
Angewandte Chemie (International ed. in English), 112(14), 2647-2648 (2000)
Laure Pison et al.
Physical chemistry chemical physics : PCCP, 17(45), 30328-30342 (2015-10-29)
The solubility of n-butane and 2-methylpropane (isobutane) in three ionic liquids - 1-(2-methylpropyl)-3-methylimidazolium bis(trifluoromethylsulfonyl)imide [(2mC3)C1im][Ntf2], 1-(3-methylbutyl)-3-methylimidazolium bis(trifluoromethylsulfonyl)imide [(3mC4)C1im][Ntf2] and 1-methyl-3-pentylimidazolium bis(trifluoromethylsulfonyl)imide [C5C1im][Ntf2] - has been measured at atmospheric pressure from 303 to 343 K. Isobutane is less soluble than n-butane
Vera Lepperhof et al.
PloS one, 9(9), e107363-e107363 (2014-09-17)
Cell loss after transplantation is a major limitation for cell replacement approaches in regenerative medicine. To assess the survival kinetics of induced pluripotent stem cell (iPSC)-derived cardiomyocytes (CM) we generated transgenic murine iPSC lines which, in addition to CM-specific expression

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