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Substance Name: Acetic acid, 2-chloro-2-oxo-, ethyl ester
RN: 4755-77-5

Molecular Formula

  • C4-H5-Cl-O3

Molecular Weight

  • 136.533
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Names and Synonyms


  • EINECS 225-285-0
  • Ethoxalyl chloride
  • Ethyl 2-chloro-2-oxoacetate
  • Ethyl chloroglyoxylate
  • Ethyl chlorooxoacetate
  • Ethyl oxalyl chloride
  • Glyoxylic acid, chloro-, ethyl ester
  • Monoethyl oxaloyl chloride
  • NSC 80644
  • Oxalic acid monoethyl ester chloride
  • Oxalyl chloride, ethyl ester

Systematic Names

  • Acetic acid, 2-chloro-2-oxo-, ethyl ester
  • Acetic acid, chlorooxo-, ethyl ester
  • Ethyl chloroglyoxylate

Registry Numbers

CAS Registry Number

  • 4755-77-5

System Generated Number

  • 0004755775

Structure Descriptors







Physical Properties

Physical Property Value Units Temp (deg C) Source
Boiling Point 137 deg C   EXP
log P (octanol-water) -0.700 (none)   EST
Water Solubility 3.45E+05 mg/L 25 EST
Vapor Pressure 7.61 mm Hg 25 EXP
Henry's Law Constant 1.24E-05 atm-m3/mole 25 EST
Atmospheric OH Rate Constant 1.66E-12 cm3/molecule-sec 25 EST

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