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59070 Sigma-Aldrich

2-Methylbutane

puriss. p.a., ≥99.5% (GC)

Synonym: Isopentane

  • CAS Number 78-78-4

  • Linear Formula CH3CH2CH(CH3)2

  • Molecular Weight 72.15

  •  Beilstein/REAXYS Number 1730723

  •  EC Number 201-142-8

  •  MDL number MFCD00009338

  •  PubChem Substance ID 329758567

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Properties

Related Categories Analytical Reagents, Analytical Reagents for General Use, Analytical/Chromatography, I-N, Puriss p.a., Puriss p.a. More...
vapor density   2.6 (vs air)
vapor pressure   11.17 psi ( 20 °C)
grade   puriss. p.a.
assay   ≥99.5% (GC)
autoignition temp.   788 °F
expl. lim.   8.3 %
impurities   ≤0.05% water
evapn. residue   ≤0.001%
refractive index   n20/D 1.354 (lit.)
  n20/D 1.354
bp   30 °C (lit.)
mp   -160 °C
density   0.62 g/mL at 25 °C (lit.)
cation traces   Al: ≤0.5 mg/kg
  Ba: ≤0.1 mg/kg
  Bi: ≤0.1 mg/kg
  Ca: ≤0.5 mg/kg
  Cd: ≤0.05 mg/kg
  Co: ≤0.02 mg/kg
  Cr: ≤0.02 mg/kg
  Cu: ≤0.02 mg/kg
  Fe: ≤0.1 mg/kg
  K: ≤0.5 mg/kg
  Li: ≤0.1 mg/kg
  Mg: ≤0.1 mg/kg
  Mn: ≤0.02 mg/kg
  Mo: ≤0.1 mg/kg
  Na: ≤0.5 mg/kg
  Ni: ≤0.02 mg/kg
  Pb: ≤0.1 mg/kg
  Sr: ≤0.1 mg/kg
  Zn: ≤0.1 mg/kg
storage temp.   2-8°C
  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

Description

General description

2-Methylbutane (Isopentane) is a branched chain alkane. It undergoes bromination at 75°C to afford 2-bromo-2-methyl butane. Its Raman spectra in vapor and solid phases at low temperatures (-196°C) have been investigated.

Application

2-Methylbutane may be used in the following studies:
• As starting reagent for the synthesis of isoprene.
• Preparation of C5 and C6 alkyl nitrates.

Safety & Documentation

Safety Information

Signal word 
Danger
Hazard statements 
Target organs 
Central nervous system
Supplemental Hazard Statements 
EUH066
RIDADR 
UN1265 - class 3 - PG 1 - Pentanes
WGK Germany 
WGK 2
RTECS 
EK4430000
Flash Point(F) 
-59.8 °F - closed cup
Flash Point(C) 
-51 °C - closed cup

Documents

Certificate of Analysis (COA)

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Protocols & Articles
Peer-Reviewed Papers
15

References

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