... 4,4'-Bis(9H-carbazol-9-yl)biphenyl CAS: 58328-31-7 Formula: C36H24N2 M.W.:484.59 CBP4,4'-Bis ... (9H-carbazol-9-yl)biphenylCAS: 58328-31-7Formula: C36H24N2M.W.:484.59M.P.: 281°CAbs: 292nm(in ... THF)PL: 369nm(in THF) Hole Transport Materials: NPB, TPD, TAPC, Spiro ... stable cooperative relations with domestic and abroad clients. CBP, 58328-31-7