National Toxicology Program

National Toxicology Program

Target Organs and Levels of Evidence for TR-202

Bioassay of a Mixture of 1,2,3,6,7,8-Hexachlorodibenzo-p-dioxin and 1,2,3,7,8,9-Hexachlorodibenzo-p-dioxin (Dermal Study) for Possible Carcinogenicity (CASRN 57653-85-7; CASRN 19408-74-3)

Chemical (Study Title)
Peer Review DatePrimary UsesRoute/Exposure LevelsStudy Laboratory
02/15/1980Not used commercially in the U.S. contaminant of herbicides. Associated with tobacco: reported either as a natural component of tobacco, pyrolysis product (in tobacco smoke), or additive for one or more types of tobacco products.Topical Application
0,.005,.01 UG/60 PER GROUP
IIT Research Institute

Levels of Evidence

Male Mice: Negative
Female Mice: Negative

NTP is located at the National Institute of Environmental Health Sciences, part of the National Institutes of Health.