(1,1'-Biphenyl)-2,4'-diamine 2,4'-BIPHENYLDIAMINE 2,4'-Diamino-1,1'-biphenyl 2,4'-Diaminobifenyl [Czech] 2,4'-Diaminobiphenyl 2,4'-Diaminodiphenyl 2,4'-Diphenyldiamine 4-13-00-00360 (Beilstein Handbook Reference) 492-17-1 BRN 2090325 Difenylin Diphenyline HSDB 2869 o,p'-Bianiline o,p'-Diaminobiphenyl o,p'-Dianiline ortho,para'-Bianiline ortho,para'-Diaminobiphenyl