英文别名[1,1'-Biphenyl]-4,4'-diamine, 2,2'-dimethyl-, dihydrochloride; 4,4'-bi-m-toluidine dihydrochloride; 4,4'-Diamino-2,2'-dimethylbiphenyl Dihydrochloride; (1,1'-Biphenyl)-4,4'-diamine, 2,2'-dimethyl-, hydrochloride (1:2); 4-(4-amino-3-methylphenyl)-2-methylaniline,dihydrochloride; 3,3'-Dimethylbenzidine.2HCl; o-Tolidine dihydrochloride; 2,2'-dimethylbenzidine dihydrochloride; 2,2'-Dimethyl-benzidin,Dihydrochlorid 
