Synonyms: o-Toluidine,4,4'-methylenedi- (6CI,7CI,8CI);2,2'-Dimethyl-4,4'-methylenedianiline;3,3'-Dimethyl-4,4'-diaminodiphenylmethane;4,4'-Methylenebis(o-toluidine);4,4'-Methylenebis[2-methylaniline];4,4'-Methylenedi-o-toluidine;Bis(3-methyl-4-aminophenyl)methane;Bis(4-amino-3-methylphenyl)methane;Di(3-methyl-4-aminophenyl)methane;Kayabond C 100;Kayahard MDT;NSC 37146;