Also Called: 3,3'-Dichlorobenzidene & Salts; 3,3'-dichlorobenzidine; 3,3'-dichlorobiphenyl-4,4'-ylenediamine; 3,3'-Dichlorobenzidine (see 3,3'-Dichlorobenzidine and Its Dihydrochloride); [1,1'-Biphenyl]-4,4'-diamine, 3,3'-dichloro- [3,3'-Dichlorobenzidine; 3,3'-Dichlorobiphenyl-4,4'-ylenediamine]];[1,1'-biphenyl]-4,4'-diamine, 3,3'-dichloro-;3,3'-dichlorobenzidine 3,3'-dichlorobiphenyl-4,4'-ylenediamine;3,3′-Dichlorobenzidine;3,3′-dich lorobiphenyl-4,4′-ylenediamine;3,3'-Dichlorbenzidin;3,3'-Dichlorbenzidine;3,3'-DICHLOROBENZIDINE (AND SALTS);3,3'-DICHLORO-(1,1'-BIPHENYL)-4,4' DIAMINE;(1,1'-BIPHENYL)-4,4'-DIAMINE,3,3'-DICHLORO-;3,3'-DICHLOROBENZIDINE AND ITS SALTS;3,3'-Dichlorobenzidine, and its salts;[1,1'-Bifenil]-4,4'-diamina, 3,3'-dicloro;3,3-Dichlorobenzidine;3,3'-Dichloorbenzidine;3,3'-diclorobenzidina;3,3'-diclorobifenil-4,4'-ilenodiamina;3,3'-Dichlorobenzidine (and its salts);4,4'-DIAMINO-3,3'-DICHLOR-BIPHENYL;Dichloro-3,3' benzidine;3,3-Diclorobenzidina;DICHLOROBENZIDINE;3,3'-dichlórbenzidín;3,3'-dichlórbifenyl-4,4'-diamín;3,3'-Dichlorobenzidine and its salts (including 3,3'-Dichlorobenzidine dihydrochloride [612839]);3,3'-Dichloro[1,1'-biphenyl]-4,4'-diamine;3,3'-Dichloro-4,4'-biphenyldiamine, 3,3'-Dichlorobenzidine;3,3'-dichlorobenzidine3,3'-dichlorobiphenyl-4,4'-ylenediamine;612-068-00-4;3,3'-Diclorebencidina;3,3'-dichlorbenzidinas;3,3'-dichlorbifenil-4,4'-ilenodiaminas