biphenyl-4-yl-(9,9-dimethyl-9h-fluoren-2-yl)-[4-(9-phenyl-8a,9-dihydro-4bh-carbazol-3-yl)-phenyl]-amine
name：biphenyl-4-yl-(9,9-dimethyl-9h-fluoren-2-yl)-[4-(9-phenyl-8a,9-dihydro-4bh-carbazol-3-yl)-phenyl]-amine cas no.：1242056-42-3 purity：99.90%