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 3,3′,5,5′-Tetramethylbenzidine (TMB)CAS: 54827-17-7 Polyimide (PI) material 9,9-Bis[4-(4-aminophenoxy)phenyl] fluorene (BAOFL)CAS: 47823-88-1 Polyimide (PI) material 2,2′-Bis(4-aminophenoxyphenyl) propane (BAPP)CAS: 13080-86-9 Polyimide (PI) material 1,4-Bis(3,4-Dicarboxyphenoxy)benzene Dianhydride (HQDPA)CAS: 17828-53-4 Polyimide (PI) material