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154911 Sigma-Aldrich

2-Methylbutane

spectrophotometric grade, ≥99%

Synonym: Isopentane

  • CAS Number 78-78-4

  • Linear Formula CH3CH2CH(CH3)2

  • Molecular Weight 72.15

  •  Beilstein Registry Number 1730723

  •  EC Number 201-142-8

  •  MDL number MFCD00009338

  •  PubChem Substance ID 57647370

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Properties

Related Categories Amber Glass Bottles, Solvent Bottles, Solvent Packaging Options, Solvent by Application, Solvents,
grade   spectrophotometric grade
vapor density   2.6 (vs air)
vapor pressure   11.17 psi ( 20 °C)
InChI Key   QWTDNUCVQCZILF-UHFFFAOYSA-N
assay   ≥99%
autoignition temp.   788 °F
expl. lim.   8.3 %
impurities   <0.020% water
evapn. residue   <0.0003%
refractive index   n20/D 1.354(lit.)
bp   30 °C(lit.)
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

Description

Other Notes

A -D suffix exists for administrative purposes only.
All -D packages are 100% the same product, same quality, same specification as the package sizes previously sold without a -D.

Price and Availability

Safety & Documentation

Safety Information

Signal word 
Danger
Hazard statements 
Precautionary statements 
Supplemental Hazard Statements 
Repeated exposure may cause skin dryness or cracking.
RIDADR 
UN1265 - class 3 - PG 1 - Pentanes
WGK Germany 
2
RTECS 
EK4430000
Flash Point(F) 
-59.8 °F
Flash Point(C) 
-51 °C
Protocols & Articles
Peer-Reviewed Papers
15

References

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