Also Called: 3,3'-DICHLOROBENZIDINE SULFATE;Salts of 3,3′-dichlorobenzidine;salts of 3,3′-dichlorobiphenyl-4,4′- ylenediamine;3,3'-dichlorobenzidine dihydrogen bis(sulphate);[1,1'-Biphenyl]-4,4'-diamine, 3,3'-dichloro-, sulfate (1:2);[1,1'-Biphenyl]-4,4'-diamine, 3,3'-dichloro-, sulfate (2:1);3,3'-Dichloro[1,1'-biphenyl]-4,4'-diamine sulfate