862664-73-1

SPIRO-BPA 2,2'-Bis(diphenylamino)-9,9'-spirobifluorene N,N,N',N'-Tetraphenyl-9,9'-spirobi[9H-fluorene]-2,2'-diamine Spiro-BPA , 2,2'-Bis(N,N-di-phenyl-aMino)9,9-spiro-bifluoren 9,9'-Spirobi[9H-fluorene]-2,2'-diamine, N2,N2,N2',N2'-tetraphenyl-