Similar names: 1,4-Benzenediamine, N1,N4-diphenyl-; 1,4-Benzenediamine, N,N'-diphenyl- (9CI); p-Phenylenediamine, N,N'-diphenyl- (8CI); N1,N4-Diphenyl-1,4-benzenediamine; 1,4-Bis(phenylamino)benzene; 1,4-Dianilinobenzene; 4,4'-Diphenyl-p-phenylenediamine; 4-Phenylaminodiphenylamine; AgeRite DPPD; Altofane DIP; Antage DP; Antigen P; Antigene P; Antioxidant H; DFFD; DPPD; Diafen FF; Diafen FF-T; Diphenyl-p-phenylenediamine; Ekaland DPPD; Flexamine G; JZF; N,N'-Diphenyl-1,4-benzenediamine; N,N'-Diphenyl-1,4-phenylenediamine; N,N'-Diphenyl-p-phenylenediamine; NSC 5761; Naugard J; Nocrac DP; Nonflex H; Nonox DPPD; PPD; Permanax 18; Permanax DPPD; Stabilizer DPPD; p-Bis(phenylamino)benzene; p-Phenylaminodiphenylamine