Synonyms: p-Phenylenediamine,2,3,5,6-tetrafluoro- (6CI,7CI,8CI); 1,4-Diamino-2,3,5,6-tetrafluorobenzene;1,4-Diaminotetrafluorobenzene; 2,3,5,6-Tetrafluoro-1,4-benzenediamine;2,3,5,6-Tetrafluoro-p-phenylenediamine;2,3,5,6-Tetrafluorophenylene-1,4-diamine; Tetrafluoro-p-phenylenediamine