(1,1'-Biphenyl)-2,2'-diamine (1,1'-Biphenyl)-2,2'-diamine (9CI) 1454-80-4 2,2'-BIPHENYLDIAMINE 2,2'-Diaminobiphenyl 2,2'-Diaminodiphenyl 4-13-00-00356 (Beilstein Handbook Reference) BRN 1949579 NSC 99367 o,o'-Diaminobiphenyl o-Benzidine