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Target Organs and Levels of Evidence for TR-157

Bioassay of Methyl Parathion for Possible Carcinogenicity (CASRN 298-00-0)

Chemical (Study Title)
Peer Review DatePrimary UsesRoute/Exposure LevelsStudy Laboratory
Methyl parathion
12/15/1978Insecticide. 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.Dosed-Feed
R: 0,20,40, MM: 0,35,77 (AVG), FM: 0,62.5,125 PPM/50 PER GROUP
Frederick Cancer Research Facility

Levels of Evidence

Male Rats: Negative
Female Rats: Negative
Male Mice: Negative
Female Mice: Negative