chlorinated hydrocarbons found in a bioassay to be carcinogenic to both b6c3f1 mice and osborne-mendel rats ( 1,2-dichloroethane ) , carcinogenic only to mice ( 1,1,2-trichloroethane , 1,1,2,2-tetrachloroethane , hexachloroethane , trichloroethylene , and tetrachloroethylene ) , and noncarcinogenic to either species ( 1,1-dichloroethane and 1,1,1-trichloroethane ) were used to investigate the biochemical bases for tumorigenesis .
C0020247
chlorinated hydrocarbons
C0040905
trichloroethylene