4,4'-二氨基-2,2'-二甲基联苯双盐酸盐;
2,2'-Dimethyl-benzidin,Dihydrochlorid;o-Tolidine dihydrochloride;3,3'-Dimethylbenzidine.2HCl;2,2'-dimethylbenzidine dihydrochloride;4,4'-Bianisidine dihydrochloride;
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