n4,n4'-dipheny-n4,n4'-bis(9-phenyl-9h-carbazol-3-yl)biphenyl-4,4'-diamine
name:n4,n4'-dipheny-n4,n4'-bis(9-phenyl-9h-carbazol-3-yl)biphenyl-4,4'-diamine cas no.:887402-92-8 purity:99.90%