Biphenyl-4-yl-(3'-carbazol-9-yl-biphenyl-4-yl)-(4-dibenzofuran-4-yl-phenyl)-amine

Biphenyl-4-yl-(3'-carbazol-9-yl-biphenyl-4-yl)-(4-dibenzofuran-4-yl-phenyl)-amine ·