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Substance Name: Hexachlorodiphenyloxide
RN: 31242-93-0

Classification Code

  • TWA 0.5 mg/m3

Molecular Formula

  • C12-H4-Cl6-O

Molecular Weight

  • 382.928
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Names and Synonyms

Name of Substance

  • Hexachlorodiphenyloxide


  • 1,1'-Oxybisbenzene hexachloro deriv.
  • 1,1'-Oxybishexachloro benzene, derivative
  • Ether, hexachlorophenyl
  • Hexachloro diphenyl oxide
  • Hexachlorodiphenyl ether
  • Hexachlorodiphenyl oxide
  • Phenyl ether, hexachloro deriv.
  • Trichloro diphenyl ether
  • Trichloro diphenyl oxide

Systematic Names

  • Benzene, 1,1'-oxybis-, hexachloro deriv.
  • Benzene, 1,1'-oxybis-, hexachloro deriv. (9CI)
  • Ether, trichlorophenyl
  • Phenyl ether, hexachloro deriv. (8CI)

Superlist Names

  • Chlorinated diphenyl oxide
  • o-Chlorinated diphenyl oxide

Registry Numbers

CAS Registry Number

  • 31242-93-0


  • 53QMU3ERSE

Other Registry Number

  • 55720-99-5

System Generated Number

  • 0031242930


Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
rat LD oral > 500mg/kg (500mg/kg)   National Academy of Sciences, National Research Council, Chemical-Biological Coordination Center, Review. Vol. 5, Pg. 16, 1953.