Home Display Materials Polyimide (PI) material 1,2,3,4-Butanetetracarboxylicdianhydride (BDA) 1,2,3,4-Butanetetracarboxylicdianhydride (BDA) CAS: 4534-73-0 Category: Polyimide (PI) material Related products 4,4′-Oxydiphthalic anhydrideCAS: 1823-59-2 Polyimide (PI) material 1,4-Bis(3,4-Dicarboxyphenoxy)benzene Dianhydride (HQDPA)CAS: 17828-53-4 Polyimide (PI) material Pyromellitic Dianhydride (PMDA)CAS: 89-32-7 Polyimide (PI) material 5-(3-phenylprop-2-ynoyl)-1,3-dihydro-2-benzofuran-1,3-dioneCAS: 1329658-14-1 Polyimide (PI) material