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270342 Sigma-Aldrich

2-Methylbutane

for HPLC, ≥99.5%

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 329752930

  •  NACRES NA.21

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Properties

Related Categories Amber Glass Bottles, Analytical Reagents, Analytical/Chromatography, Chromatography Reagents & Solvents, HPLC,
Quality Level   100
grade   for HPLC
vapor density   2.6 (vs air)
vapor pressure   11.17 psi ( 20 °C)
assay   ≥99.5%
form   liquid
autoignition temp.   788 °F
purified by   glass distillation
expl. lim.   8.3 %
application(s)   HPLC: suitable
impurities   <0.020% water
evapn. residue   <0.0003%
refractive index   n20/D 1.354 (lit.)
bp   30 °C (lit.)
mp   -160 °C
density   0.62 g/mL at 25 °C (lit.)
λ   H2O reference
UV absorption   λ: 192 nm Amax: 1.00
  λ: 210 nm Amax: 0.30
  λ: 220 nm Amax: 0.07
  λ: 240-400 nm Amax: 0.01
Featured Industry   Food and Beverages
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

Description

Packaging

1, 6×1, 2 L in Sure/Seal™

100 mL in Sure/Seal™

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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
Protocols & Articles

Articles

GC Analysis of C1-C5 Hydrocarbons on Alumina Sulfate PLOT

From our library of Articles, Sigma-Aldrich presents GC Analysis of C1-C5 Hydrocarbons on Alumina Sulfate PLOT
Keywords: Chromatography, Flame ionization detector, Gas chromatography, Sample preparations

GC Analysis of Hydrocarbons in Gasoline on Equity®-1 (15 m x 0.10 mm I.D., 0.10 μm), Fast GC Analysis

From our library of Articles, Sigma-Aldrich presents GC Analysis of Hydrocarbons in Gasoline on Equity®-1 (15 m x 0.10 mm I.D., 0.10 μm), Fast GC Analysis
Keywords: Chromatography, Flame ionization detector, Gas chromatography, Size-exclusion chromatography

GC Analysis of Hydrocarbons in Gasoline on Petrocol® DH, Isothermal

From our library of Articles, Sigma-Aldrich presents GC Analysis of Hydrocarbons in Gasoline on Petrocol® DH, Isothermal
Keywords: Chromatography, Flame ionization detector, Gas chromatography, Purification, Separation

GC Analysis of Hydrocarbons in Gasoline on Petrocol® DH

From our library of Articles, Sigma-Aldrich presents GC Analysis of Hydrocarbons in Gasoline on Petrocol® DH
Keywords: Chromatography, Flame ionization detector, Gas chromatography, Purification, Size-exclusion chromatography

GC Analysis of Impurities in Propylene on Alumina Chloride PLOT

From our library of Articles, Sigma-Aldrich presents GC Analysis of Impurities in Propylene on Alumina Chloride PLOT
Keywords: Chromatography, Flame ionization detector, Gas chromatography, Sample preparations

Pressure-Temperature Calculator for Solvents

*Calculations provide estimated results based on Antoine's Coefficients and their associated temperature range values. Antoine's Coefficients were obtained from the National Institute of Standards an...

Peer-Reviewed Papers
15

References

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