Synonyms:
benzidinedisulphonicacid ; benzidine-2,2'-disulphonic acid ; 6,6'-bimetanilic acid ; 2,2'-benzidinedisulf ; benzidine 2,2 disulfonic acid ; 2,2'-disulfonic acid benzidine ; 2,2'-disulfobenzidine ; 2,2'-disulfo-benzidin ; bdsa ; 2,2'-benzidinedisulfonic acid