Home Display Materials Polyimide (PI) material 4-Aminobenzoic acid 4-aminophenyl ester (APAB) 4-Aminobenzoic acid 4-aminophenyl ester (APAB) CAS: 20610-77-9 Category: Polyimide (PI) material Related products 3,3′,5,5′-Tetramethylbenzidine (TMB)CAS: 54827-17-7 Polyimide (PI) material 2,3,3′,4′-Tetracarboxydiphenyl oxide dianhydride (α-ODPA)CAS: 50662-95-8 Polyimide (PI) material 1,4-Bis(3,4-Dicarboxyphenoxy)benzene Dianhydride (HQDPA)CAS: 17828-53-4 Polyimide (PI) material 6,6′-Diaminodiphenylmethane-3,3′-dicarboxylic acid (MBAA)CAS: 7330-46-3 Polyimide (PI) material