Product Name

  • Name

    3,3',4,4'-TETRACHLOROAZOBENZENE

  • EINECS
  • CAS No. 14047-09-7
  • Article Data13
  • CAS DataBase
  • Density 1.48 g/cm3
  • Solubility
  • Melting Point 195.5 °C
  • Formula C12H6 Cl4 N2
  • Boiling Point 441.6 ºC
  • Molecular Weight 320.005
  • Flash Point 220.9 ºC
  • Transport Information
  • Appearance
  • Safety Low toxicity by ingestion. Mutation data reported. When heated to decomposition it emits very toxic fumes of Cl− and NOx.
  • Risk Codes
  • Molecular Structure Molecular Structure of 14047-09-7 (3,3',4,4'-TETRACHLOROAZOBENZENE)
  • Hazard Symbols
  • Synonyms Azobenzene,3,3',4,4'-tetrachloro- (6CI,7CI,8CI); Diazene, bis(3,4-dichlorophenyl)- (9CI);3,3',4,4'-Tetrachloroazobenzene; TCAB
  • PSA 24.72000
  • LogP 6.71560

3,3',4,4'-Tetrachloroazobenzene Chemical Properties

Chemistry informtion about 3,3',4,4'-Tetrachloroazobenzene (CAS NO.14047-09-7) is:
IUPAC Name: Bis(3,4-Dichlorophenyl)Diazene
Synonyms: 3,3',4,4'-Tetrachloro-Azobenzen ; 3,4,3',4'-Tetrachloroazobenzene ; Azobenzene,3,3',4,4'-Tetrachloro- ; Bis(3,4-Dichlorophenyl)-Diazen ; Bis(3,4-Dichlorophenyl)Diazene ; Diazene,Bis(3,4-Dichlorophenyl)-(9ci) ; Tcab ; 1-(3,4-Dichlorophenylazo)-3,4-Dichlorobenzene
MF: C5H11NO2
MW: 117.15
EINECS: 207-332-7 
Density: 1.48 g/cm3
Flash Point: 220.9 °C 
Boiling Point: 441.6 °C at 760 mmHg
Vapour Pressure: 1.39E-07 mmHg at 25°C 
Enthalpy of Vaporization: 67.2 kJ/mol
Following is the molecular structure of 3,3',4,4'-Tetrachloroazobenzene (CAS NO.14047-09-7) is:

3,3',4,4'-Tetrachloroazobenzene Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
rat LCLo inhalation 920mg/m3/4H (920mg/m3) liver: other changes United States Environmental Protection Agency, Office of Pesticides and Toxic Substances. Vol. 8EHQ-0981-0409,
rat LD50 oral 5gm/kg (5000mg/kg) liver: other changes United States Environmental Protection Agency, Office of Pesticides and Toxic Substances. Vol. 8EHQ-0981-0409,

3,3',4,4'-Tetrachloroazobenzene Consensus Reports

EPA Genetic Toxicology Program.

3,3',4,4'-Tetrachloroazobenzene Safety Profile

Low toxicity by ingestion. Mutation data reported. When heated to decomposition it emits very toxic fumes of Cl− and NOx.

3,3',4,4'-Tetrachloroazobenzene Specification

 3,3',4,4'-Tetrachloroazobenzene (CAS NO.14047-09-7) is a contaminant generated during the synthesis of 3,4-dichloroaniline and 3,4-dichloroaniline-derived pesticides. It is isosteric to 2,3,7,8-tetrachlorodibenzo-p-dioxin and has been shown to bind to the Ah receptor. The extensive azo reduction of  3,3',4,4'-Tetrachloroazobenzene decreases its systemic absorption after oral administration and thereby limits the amount of parent compound available to interact with the Ah receptor and decreases the Ah receptor-mediated toxicity.

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