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 p-PhenylenediaMine(p-PDA)CAS: 106-50-3 Polyimide (PI) material 3,5-Diaminobenzoic acid (DABA)CAS: 535-87-5 Polyimide (PI) material 2,3,3′,4′-Tetracarboxydiphenyl oxide dianhydride (α-ODPA)CAS: 50662-95-8 Polyimide (PI) material 4,4′-Oxydiphthalic anhydrideCAS: 1823-59-2 Polyimide (PI) material