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Substance Name: Isobutane [NF]
RN: 75-28-5
UNII: BXR49TP611
InChIKey: NNPPMTNAJDCUHE-UHFFFAOYSA-N

Classification Code

  • Aerosol Propellant

Molecular Formula

  • C4-H10

Molecular Weight

  • 58.123
 

Names and Synonyms

Name of Substance

  • 2-Methylpropane
  • Isobutane
  • Isobutane [NF]
  • Propane, 2-methyl-

Synonyms

  • 1,1-Dimethylethane
  • 2-Methylpropane
  • A 31 (hydrocarbon)
  • Caswell No. 503A
  • EC 200-857-2
  • EINECS 200-857-2
  • EPA Pesticide Chemical Code 097101
  • HSDB 608
  • Isobutane
  • Propane, 2-methyl-
  • R 600a
  • R-600a
  • Trimethylmethane
  • UNII-BXR49TP611

Systematic Names

  • Isobutane
  • Propane, 2-methyl-

Superlist Names

  • Isobutane
  • Propane, 2-methyl-

Registry Numbers

CAS Registry Number

  • 75-28-5

FDA UNII

  • BXR49TP611

Other Registry Numbers

  • 100494-20-0
  • 1326305-81-0
  • 70357-15-2

System Generated Number

  • 0000075285

Structure Descriptors

InChI

1S/C4H10/c1-4(2)3/h4H,1-3H3

InChIKey

NNPPMTNAJDCUHE-UHFFFAOYSA-N

Smiles

C(C)(C)C

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LCLo inhalation 1041gm/m3/2H (1041000mg/m3) BEHAVIORAL: EXCITEMENT Journal of Pharmacology and Experimental Therapeutics. Vol. 58, Pg. 74, 1936.
rat LC50 inhalation 57pph/15M (570000ppm) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

LUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSION

BEHAVIORAL: TREMOR
Human Toxicology. Vol. 1, Pg. 239, 1982.

Physical Properties

Physical Property Value Units Temp (deg C) Source
Melting Point -1.38E+02 deg C   EXP
Boiling Point -1.17E+01 deg C   EXP
log P (octanol-water) 2.76 (none)   EXP
Water Solubility 48.8 mg/L 25 EXP
Vapor Pressure 2610 mm Hg 25 EXP
Henry's Law Constant 1.190 atm-m3/mole 25 EST
Atmospheric OH Rate Constant 2.34E-12 cm3/molecule-sec 25 EXP

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