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Substance Name: Ethanol, 2-(2-methylpropoxy)-
RN: 4439-24-1

Classification Code

  • Skin / Eye Irritant

Molecular Formula

  • C6-H14-O2

Molecular Weight

  • 118.1746
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Names and Synonyms


  • 2-(2-Methylpropoxy)ethanol
  • 2-Isobutoxyethanol
  • 4-01-00-02382 (Beilstein Handbook Reference)
  • BRN 1732707
  • EINECS 224-658-5
  • Ektasolve EIB
  • Ethanol, 2-(2-methylpropoxy)-
  • Ethylene glycol monoisobutyl ether
  • Isobutyl cellosolve

Systematic Names

  • 2-(2-Methylpropoxy)ethanol
  • Ethanol, 2-(2-methylpropoxy)-
  • Ethanol, 2-isobutoxy-

Superlist Names

  • Ethanol, 2-(2-methylpropoxy)-
  • Ethylene glycol monoisobutyl ether

Registry Numbers

CAS Registry Number

  • 4439-24-1

System Generated Number

  • 0004439241

Structure Descriptors








Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
guinea pig LD50 skin 8870mg/kg (8870mg/kg)   "Patty's Industrial Hygiene and Toxicology," 3rd rev. ed., Clayton, G.D., and F.E. Clayton, eds., New York, John Wiley & Sons, Inc., 1978-82. Vol. 3 originally pub. in 1979; pub. as 2n rev. ed. in 1985.Vol. 2C, Pg. 3940, 1982.
mouse LD50 intraperitoneal 652mg/kg (652mg/kg)   Archives of Toxicology. Vol. 66, Pg. 368, 1992.
mouse LD50 oral > 1600mg/kg (1600mg/kg)   Kodak Company Reports. Vol. 21MAY1971,
rabbit LD50 skin 710uL/kg (0.71mL/kg)   Union Carbide Data Sheet. Vol. 3/4/1969,
rat LCLo inhalation 1000ppm/4H (1000ppm)   Union Carbide Data Sheet. Vol. 3/4/1969,
rat LD50 oral 400mg/kg (400mg/kg)   Kodak Company Reports. Vol. 21MAY1971,

Physical Properties

Physical Property Value Units Temp (deg C) Source
Boiling Point 160 deg C   EXP
log P (octanol-water) 0.75 (none)   EXP
Water Solubility 7.55E+04 mg/L 25 EST
Vapor Pressure 0.473 mm Hg 25 EST
Henry's Law Constant 9.79E-08 atm-m3/mole 25 EST
Atmospheric OH Rate Constant 2.53E-11 cm3/molecule-sec 25 EST

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