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  • 539821
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539821

Sigma-Aldrich

2-Methylpropane

99.995%

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)

Quality Level

vapor pressure

72.2 psi ( 37.7 °C)

Assay

99.995%

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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295450487627C56352
2-Methylpropane 99.995%

Sigma-Aldrich

539821

2-Methylpropane

2-Methylpropane 99%

Sigma-Aldrich

295450

2-Methylpropane

2-Methylpropane-2-d 98 atom % D

Sigma-Aldrich

487627

2-Methylpropane-2-d

assay

99.995%

assay

99%

assay

-

assay

99%

bp

−12 °C (lit.)

bp

−12 °C (lit.)

bp

−12 °C (lit.)

bp

51-52 °C (lit.)

mp

−160 °C (lit.)

mp

−160 °C (lit.)

mp

−160 °C (lit.)

mp

−25 °C (lit.)

density

2.064 g/mL at 25 °C (lit.)

density

2.064 g/mL at 25 °C (lit.)

density

-

density

0.851 g/mL at 25 °C (lit.)

Quality Level

100

Quality Level

100

Quality Level

200

Quality Level

200

vapor density

2.01 (21 °C, vs air)

vapor density

2.01 (21 °C, vs air)

vapor density

2.01 (21 °C, vs air)

vapor density

3.2 (vs air)

Packaging

Supplied in a carbon steel lecture bottle with a CGA180M/CGA110F needle valve installed.

Compatible with the following:
  • Aldrich® lecture-bottle station systems
  • Aldrich® lecture-bottle gas regulators

Other Notes

Legal Information

Aldrich is a registered trademark of Sigma-Aldrich Co. LLC

Pictograms

FlameGas cylinder

Signal Word

Danger

Hazard Statements

Precautionary Statements

Hazard Classifications

Flam. Gas 1 - 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

Certificate of Analysis

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

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

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