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Substance Name: Hexachlorodibenzo-p-dioxin
RN: 34465-46-8
UNII: K0N0B011UE

Molecular Formula

  • C12-H2-Cl6-O2

Molecular Weight

  • 396.9112
 

Classification Codes

Classification Codes

  • Reproductive Effect
  • Skin / Eye Irritant
  • Tumor Data

Superlist Classification Codes

  • 2007 CERCLA Priority List, Rank: 153
  • 2011 CERCLA Priority List, Rank: 196
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Links to Resources

Names and Synonyms

Name of Substance

  • Hexachlorodibenzo-4-dioxin
  • Hexachlorodibenzo-p-dioxin

Synonyms

  • 1,2,3,6,7,8-Hexachlorodibenzodioxin
  • 5-19-02-00042 (Beilstein Handbook Reference)
  • BRN 1628806
  • Dibenzo(b,e)(1,4)dioxin, hexachloro
  • HCDD
  • Hexachlorodibenzo-4-dioxin
  • Hexachlorodibenzo-p-dioxin
  • HSDB 6867
  • UNII-K0N0B011UE

Systematic Names

  • Dibenzo(b,e)(1,4)dioxin, hexachloro-
  • Dibenzo-p-dioxin, hexachloro-

Superlist Names

  • Hexachlorodibenzo-p-dioxin
  • Hexachlorodibenzodioxin

Registry Numbers

CAS Registry Number

  • 34465-46-8

FDA UNII

  • K0N0B011UE

System Generated Number

  • 0034465468

Structure Descriptors

Smiles

c12c(Oc3c(O1)cccc3)cccc2.Cl[*].Cl[*].Cl[*].Cl[*].Cl[*].Cl[*]

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
rat LDLo oral 100mg/kg (100mg/kg)   Advances in Chemistry Series. Vol. 120, Pg. 55, 1973.

Physical Properties

Physical Property Value Units Temp (deg C) Source
Melting Point 250 deg C   EXP
log P (octanol-water) 8.210 (none)   EST
Water Solubility 4.00E-06 mg/L 20 EXP
Vapor Pressure 4.40E-11 mm Hg 25 EXP
Henry's Law Constant 5.70E-06 atm-m3/mole 25 EST
Atmospheric OH Rate Constant 3.95E-13 cm3/molecule-sec 25 EST

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