Home Display Materials Polyimide (PI) material 3,3′,4,4′-Biphenyltetracarboxylic dianhydride (BPDA) 3,3′,4,4′-Biphenyltetracarboxylic dianhydride (BPDA) CAS: 2420-87-3 Category: Polyimide (PI) material Related products Pyromellitic Dianhydride (PMDA)CAS: 89-32-7 Polyimide (PI) material 1,4-Bis(3,4-Dicarboxyphenoxy)benzene Dianhydride (HQDPA)CAS: 17828-53-4 Polyimide (PI) material 3,5-Diaminobenzoic acid (DABA)CAS: 535-87-5 Polyimide (PI) material Bis(4-aminophenyl)terephthalate (BAPT)CAS: 16926-73-1 Polyimide (PI) material