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Substance Name: 2,3,7,8-Tetrachlorodibenzofuran
RN: 51207-31-9
UNII: XZJ41GQI5D
InChIKey: KSMVNVHUTQZITP-UHFFFAOYSA-N

Note

  • Toxic product which was generated in Italy due to an explosion in a plant manufacturing 2,4,5-trichlorophenol.

Molecular Formula

  • C12-H4-Cl4-O

Molecular Weight

  • 305.9746
 

Classification Codes

Classification Codes

  • Environmental Pollutants
  • Mutation Data
  • Reproductive Effect
  • Tumor Data

Superlist Classification Codes

  • 2007 CERCLA Priority List, Rank: 207
  • 2011 CERCLA Priority List, Rank: 207
  • Overall Carcinogenic Evaluation: Group 3
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Names and Synonyms

Name of Substance

  • 2,3,7,8-Tetrachlorodibenzofuran

Synonyms

  • 2,3,7,8-Tetrachlorodibenzofuran
  • 2,3,7,8-Tetrachlorodibenzofuran [Dioxin and dioxin-like compounds]
  • 2,3,7,8-Tetrapolychlorinated dibenzofuran
  • 5-17-02-00238 (Beilstein Handbook Reference)
  • BRN 1430934
  • Dibenzofuran, 2,3,7,8-tetrachloro-
  • HSDB 4306
  • NCI-C56611
  • Tcdbf
  • TCDF
  • UNII-XZJ41GQI5D

Systematic Name

  • Dibenzofuran, 2,3,7,8-tetrachloro-

Superlist Names

  • 2,3,7,8-TCDF (and congeners)
  • 2,3,7,8-Tetrachlorodibenzofuran

Registry Numbers

CAS Registry Number

  • 51207-31-9

FDA UNII

  • XZJ41GQI5D

System Generated Number

  • 0051207319

Structure Descriptors

InChI

1S/C12H4Cl4O/c13-7-1-5-6-2-8(14)10(16)4-12(6)17-11(5)3-9(7)15/h1-4H

InChIKey

KSMVNVHUTQZITP-UHFFFAOYSA-N

Smiles

c1c2c3cc(c(cc3oc2cc(c1Cl)Cl)Cl)Cl

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
guinea pig LD50 oral 5ug/kg (0.005mg/kg) SKIN AND APPENDAGES (SKIN): "DERMATITIS, OTHER: AFTER SYSTEMIC EXPOSURE"

SKIN AND APPENDAGES (SKIN): HAIR: OTHER
Toxicology and Applied Pharmacology. Vol. 55, Pg. 342, 1980.
monkey LDLo oral 1mg/kg (1mg/kg) LIVER: LIVER FUNCTION TESTS IMPAIRED

BLOOD: APLASTIC ANEMIA
Annals of the New York Academy of Sciences. Vol. 320, Pg. 151, 1979.
mouse LD50 unreported 6mg/kg (6mg/kg)   Environmental Science and Technology. Vol. 17, Pg. 124A, 1983.
mouse LDLo oral 6mg/kg (6mg/kg)   Chemosphere. Vol. 12, Pg. 453, 1983.

Physical Properties

Physical Property Value Units Temp (deg C) Source
log P (octanol-water) 6.53 (none)   EXP
Water Solubility 6.92E-04 mg/L 26 EXP
Vapor Pressure 1.53E-06 mm Hg 25 EST
Henry's Law Constant 1.54E-05 atm-m3/mole 25 EST
Atmospheric OH Rate Constant 2.53E-13 cm3/molecule-sec 25 EST

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