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Substance Name: Ethyl tert-butyl ether
RN: 637-92-3
UNII: 3R9B16WR19
InChIKey: NUMQCACRALPSHD-UHFFFAOYSA-N

Note

  • Gasoline additive.

Classification Code

  • TWA (5 ppm)

Molecular Formula

  • C6-H14-O

Molecular Weight

  • 102.176
 
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Names and Synonyms

Name of Substance

  • Ethyl tert-butyl ether

Synonyms

  • 1,1-Dimethylethyl ethyl ether
  • 2-Ethoxy-2-methylpropane
  • 2-Methyl-2-ethoxypropane
  • CCRIS 6061
  • EC 211-309-7
  • EINECS 211-309-7
  • ETBE
  • Ethyl 1,1-dimethylethyl ether
  • Ethyl tert-butyl ether
  • Ethyl tert-butyl oxide
  • HSDB 7867
  • Methyl-2-ethoxypropane
  • NSC 1069
  • tert-Butyl ethyl ether
  • UNII-3R9B16WR19

Systematic Names

  • 2-Ethoxy-2-methylpropane
  • 2-Methyl-2-ethoxypropane
  • Ether, tert-butyl ethyl
  • Propane, 2-ethoxy-2-methyl-

Superlist Names

  • Ethyl t-butyl ether
  • Propane, 2-ethoxy-2-methyl-

Registry Numbers

CAS Registry Number

  • 637-92-3

FDA UNII

  • 3R9B16WR19

System Generated Number

  • 0000637923

Structure Descriptors

InChI

1S/C6H14O/c1-5-7-6(2,3)4/h5H2,1-4H3

InChIKey

NUMQCACRALPSHD-UHFFFAOYSA-N

Smiles

O(C(C)(C)C)CC

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LC50 inhalation 123gm/m3/15M (123000mg/m3) BEHAVIORAL: GENERAL ANESTHETIC Anesthesiology. Vol. 11, Pg. 455, 1950.
rabbit LD50 skin > 2gm/kg (2000mg/kg) GASTROINTESTINAL: OTHER CHANGES

SENSE ORGANS AND SPECIAL SENSES: OTHER CHANGES: OLFACTION

GASTROINTESTINAL: "HYPERMOTILITY, DIARRHEA"
National Technical Information Service. Vol. OTS0557630,
rat LC50 inhalation > 5880mg/m3/4H (5880mg/m3)   National Technical Information Service. Vol. OTS0557661,
rat LD oral > 5gm/kg (5000mg/kg)   National Technical Information Service. Vol. OTS0557630,

Physical Properties

Physical Property Value Units Temp (deg C) Source
Melting Point -9.40E+01 deg C   EXP
Boiling Point 73.1 deg C   EXP
log P (octanol-water) 1.920 (none)   EST
Water Solubility 1.20E+04 mg/L 20 EXP
Vapor Pressure 124 mm Hg 25 EXP
Henry's Law Constant 1.39E-03 atm-m3/mole 25 EST
Atmospheric OH Rate Constant 8.84E-12 cm3/molecule-sec 25 EXP

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