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Substance Name: Isobutylene
RN: 115-11-7
UNII: QA2LMR467H
InChIKey: VQTUBCCKSQIDNK-UHFFFAOYSA-N

Classification Code

  • Tumor Data

Molecular Formula

  • C4-H8

Molecular Weight

  • 56.1072
 
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Names and Synonyms

Name of Substance

  • Isobutylene

Synonyms

  • 1,1-Dimethylethene
  • 1,1-Dimethylethylene
  • 1-Propene, 2-methyl-
  • 2-Methyl-1-propene
  • 2-Methylpropene
  • 2-Methylpropylene
  • Butene, all isomers
  • CCRIS 2281
  • EC 204-066-3
  • EINECS 204-066-3
  • gamma-Butylene
  • HSDB 613
  • Isobutene
  • Isobutylene
  • Isopropylidenemethylene
  • Propene, 2-methyl-
  • sym-Dimethylethylene
  • UNII-QA2LMR467H

Systematic Names

  • 1-Propene, 2-methyl-
  • 2-Methylpropene

Superlist Names

  • 1-Propene, 2-methyl-
  • 2-Methylpropene
  • Isobutene
  • Isobutylene see also Petroleum gases, liquefied
  • Isobutylene see also Petroleum gases, liquefied [UN1055] [Flammable gas]
  • Methylpropene
  • Propene, 2-methyl-
  • UN1055

Registry Numbers

CAS Registry Number

  • 115-11-7

FDA UNII

  • QA2LMR467H

System Generated Number

  • 0000115117

Structure Descriptors

InChI

1S/C4H8/c1-4(2)3/h1H2,2-3H3

InChIKey

VQTUBCCKSQIDNK-UHFFFAOYSA-N

Smiles

C(C)(C)=C

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LC50 inhalation 415gm/m3/2H (415000mg/m3)   Farmakologiya i Toksikologiya Vol. 30, Pg. 102, 1967.
rat LC50 inhalation 620gm/m3/4H (620000mg/m3)   Farmakologiya i Toksikologiya Vol. 30, Pg. 102, 1967.

Physical Properties

Physical Property Value Units Temp (deg C) Source
Melting Point -1.40E+02 deg C   EXP
Boiling Point -6.90E+00 deg C   EXP
log P (octanol-water) 2.34 (none)   EXP
Water Solubility 263 mg/L 25 EXP
Vapor Pressure 2310 mm Hg 25 EXP
Henry's Law Constant 0.218 atm-m3/mole 25 EXP
Atmospheric OH Rate Constant 5.14E-11 cm3/molecule-sec 25 EXP

Physical property data is provided to ChemIDplus by SRC, Inc.