Synonyms: Diphenylamine,4,4'-bis(1,1,3,3-tetramethylbutyl)- (6CI,8CI); 4,4'-Di-tert-octyldiphenylamine;Bis(4-tert-octylphenyl)amine; Bis(p-tert-octylphenyl)amine; Irganox 5057;Irganox LO 1; LO 1; Naugalube 438R; Permanox OD; Vanlube 81; Vanox 1081;p,p'-Di-tert-octyldiphenylamine