BDAF

9,9,9',9'-Tetrakis(4-methylphenyl)-2,2'-bi-9H-fluorene

BDAF , 2-[9,9-Di(4-Methylphenyl)-fluoren-2-yl]-9,9-di(4-Methyl

2-[9,9-di(4-methylphenyl)-fluoren-2-yl]-9,9-di(4-methylphenyl)fluorene