Synonyms: Ethanedione,bis(4-methylphenyl)- (9CI);p-Tolil (6CI,7CI,8CI);1,2-Bis(4-methylphenyl)-1,2-ethanedione;1,2-Bis(4-methylphenyl)ethane-1,2-dione;1,2-Bis(p-tolyl)ethane-1,2-dione;4,4'-Dimethylbenzil;Bis(4-methylphenyl)ethanedione;Di-p-methylbenzil;Di-p-tolylethanedione;NSC22505;p,p'-Dimethylbenzil;