CAS RN: 1746-01-6

Other Properties

Needles, mp 295 deg C; ... crystals from anisol, mp 320-325 deg C
Dibenzodioxins occur as 75 different isomers. There are 22 possible TCDD /tetrachlorodibenzo-p-dioxin/ isomers.
Octanol/Water partition coefficient expressed as LogP: 7.05 /from table/
Toxic equivalency factors (TEF), indicate the toxicity of a compound relative to 2,3,7,8-tetrachlorodibenzo-p-dioxin, which itself has been assigned a TEF of 1.0. Concentration data for polychlorinated dibenzo-p-dioxins are frequently reported in units of toxic equivalency which are equal to the measured concentration of substance multiplied by its TEF.
Henry's Law constant = 3.2X10-6 atm-cu m/mol at 25 deg C (est)
Find more information on this substance at: PubChem, PubMed