59070

2-Methylbutane

puriss. p.a., ≥99.5% (GC)

• Synonym(s): Isopentane
• Linear Formula: CH₃CH₂CH(CH₃)₂
• CAS Number: 78-78-4
• Molecular Weight: 72.15
• Beilstein/REAXYS Number: 1730723
• EC Number: 201-142-8
• MDL number: MFCD00009338
• UNSPSC Code: 12191502
• PubChem Substance ID: 329758567
• NACRES: NA.07

Properties

• vapor density: 2.6 (vs air)
• vapor pressure: 11.17 psi ( 20 °C)
• grade: puriss. p.a.
• assay: ≥99.5% (GC)
• form: liquid
• 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
• 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 Information

• pictograms: GHS02,GHS08,GHS07,GHS09
• signalword: Danger
• hcodes: H224,H304,H336,H411
• pcodes: P210 - P233 - P273 - P301 + P310 - P331 - P403 + P233
• Hazard Classifications: Aquatic Chronic 2 - Asp. Tox. 1 - Flam. Liq. 1 - STOT SE 3
• target_organs: Central nervous system
• supp_hazards: EUH066
• Storage Class: 3 - Flammable liquids
• wgk_germany: WGK 2
• flash_point_f: -59.8 °F - closed cup
• flash_point_c: -51 °C - closed cup