1,2,4,6,7,9/1,2,4,6,8,9-Hexachlorodibenzo-p-dioxin

IUPAC Name: 1,2,4,6,7,9-Hexachlorooxanthrene
Molecular Formula: C₁₂H₂Cl₆O₂
Molecular Weight: 390.84g/mol
Polar Surface Area: 18.46 Å²
Index of Refraction: 1.666
Molar Refractivity: 81.76 cm³
Molar Volume: 219.8 cm³
Polarizability: 32.41 ×10^-24cm³
Surface Tension: 59.7 dyne/cm
Density: 1.777 g/cm³
Flash Point: 178.6 °C
Enthalpy of Vaporization: 70.33 kJ/mol
Boiling Point: 469 °C at 760 mmHg
Vapour Pressure: 1.61E-08 mmHg at 25°C 
The Cas Register Number of 1,2,4,6,7,9-Hexachlorodibenzo-p-dioxin is 39227-62-8 .The chemical synonyms of 1,2,4,6,7,9-Hexachlorodibenzo-p-dioxin (CAS No. 39227-62-8) are  Dibenzo(b,e)(1,4)dioxin, 1,2,4,6,7,9-hexachloro- ; 1,2,4,6,7,9-Hexachlorodibenzodioxin ; 1,2,4,6,7,9-Hexachlorodibenzo-para-dioxin .The molecular structure of 1,2,4,6,7,9-Hexachlorodibenzo-p-dioxin (CAS No. 39227-62-8) is.

IARC Cancer Review: Group 3 IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 7 , 1987,p. 56.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Animal Inadequate Evidence IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 15 , 1977,p. 41.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Human No Adequate Data IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 15 , 1977,p. 41.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) .

Questionable carcinogen. When heated to decomposition it emits toxic vapors of Cl⁻.