英文别名o-Tolidine dihydrochloride; o-Tolidine2HCl; 1,1-Biphenyl-4,4-diamine, 3,3-dimethyl-, dihydrochloride; 3,3'-dimethyl-benzidine,dihydrochloride; 4,4'-bi-o-toluidine dihydrochloride; O-TOLIDINE DI HCL; O-TOLIDINE HYDROCHLORIDE; 3,3'-Dimethyl-benzidin,Dihydrochlorid; 4,4'-Bianisidine dihydrochloride; 4,4'-Diamino-3,3'-dimethylbiphenyl dihydrochloride; (1,1'-Biphenyl)-4,4'-diamine, 3,3'-dimethyl-, dihydrochloride; 3,3'-Dimethyl-[1,1'-biphenyl]-4,4'-diamine dihydrochloride; 3,3'-Dimethyl-4,4'-biphenyldiamine dihydrochloride; Benzidine, 3,3'-dimethyl-, dihydrochloride; 3,3'-Dimethylbiphenyl-4,4'-diamine dihydrochloride 
