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51207-31-9

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Basic Information
CAS No.: 51207-31-9
Name: 2,3,7,8-TETRACHLORODIBENZOFURAN
Article Data: 2
Molecular Structure:
Molecular Structure of 51207-31-9 (2,3,7,8-TETRACHLORODIBENZOFURAN)
Formula: C12H4 Cl4 O
Molecular Weight: 305.975
Synonyms: 2,3,7,8-TCDF;2,3,7,8-Tetrachlorodibenzofuran; F 83; PCDF 83; TCDF
Density: 1.625g/cm3
Melting Point: 227°C
Boiling Point: 421.2°Cat760mmHg
Flash Point: 208.6°C
Solubility: 0.4192ug/L(22.5 oC)
Safety: Poison by ingestion. An experimental teratogen. Experimental reproductive effects. When heated to decomposition it emits toxic fumes of Cl−.
PSA: 13.14000
LogP: 6.19960
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Chemistry

Empirical Formula of 2,3,7,8-Tetrachlorodibenzofuran (CAS NO.51207-31-9): C12H4Cl4O
Molecular Weight: 305.9716 g/mol
Index of Refraction: 1.713
Density: 1.625 g/cm3
Flash Point: 208.6 °C
Enthalpy of Vaporization: 64.91 kJ/mol
Boiling Point: 421.2 °C at 760 mmHg
Vapour Pressure: 6.48E-07 mmHg at 25 °C
Structure of 2,3,7,8-Tetrachlorodibenzofuran (CAS NO.51207-31-9):
               
IUPAC Name: 2,3,7,8-Tetrachlorodibenzofuran

Toxicity Data With Reference

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.

Consensus Reports

EPA Genetic Toxicology Program.

Safety Profile

Poison by ingestion. An experimental teratogen. Experimental reproductive effects. When heated to decomposition it emits toxic fumes of Cl−.

Specification

 2,3,7,8-Tetrachlorodibenzofuran ,its cas register number is 51207-31-9. It also can be called 2,3,7,8-TCDF ;and Dibenzofuran, 2,3,7,8-tetrachloro- . 2,3,7,8-Tetrachlorodibenzofuran (CAS NO.51207-31-9) is toxic product which was generated in Italy due to an explosion in a plant manufacturing 2,4,5-trichlorophenol.