Home Display Materials Polyimide (PI) material Bis[(3,4-dicarboxylic anhydride) phenyl]terephthalate (PHAP) Bis[(3,4-dicarboxylic anhydride) phenyl]terephthalate (PHAP) CAS: 21117-79-3 Category: Polyimide (PI) material Related products 1,4-Bis(3,4-Dicarboxyphenoxy)benzene Dianhydride (HQDPA)CAS: 17828-53-4 Polyimide (PI) material Nadic Anhydride (NA)CAS: 826-62-0 Polyimide (PI) material 4,4′-Diaminobenzanilide (DABA)CAS: 785-30-8 Polyimide (PI) material 3,3′,5,5′-Tetramethylbenzidine (TMB)CAS: 54827-17-7 Polyimide (PI) material