Synonyms: p-Phenylenediamine,2,5-dichloro- (6CI,7CI,8CI);1,4-Diamino-2,5-dichlorobenzene;2,5-Diamino-1,4-dichlorobenzene;2,5-Dichloro-1,4-benzenediamine;2,5-Dichloro-1,4-diaminobenzene;2,5-Dichloro-1,4-phenylenediamine;2,5-Dichloro-p-phenylenediamine;4-Amino-2,5-dichloroaniline;1,4-Benzenediamine,2,5-dichloro-;