Home Display Materials Polyimide (PI) material 4,4′-Diamino-[1,1′-biphenyl]-2,2′- dicarboxylic acid 4,4′-Diamino-[1,1′-biphenyl]-2,2′- dicarboxylic acid CAS: 17557-76-5 Category: Polyimide (PI) material Related products Pyromellitic Dianhydride (PMDA)CAS: 89-32-7 Polyimide (PI) material 1,4-Bis(4-amino-2-trifluoromethylphenoxy)benzene (6FAPB)CAS: 94525-05-0 Polyimide (PI) material 4,4-BIS(3-AMINOPHENOXY)BIPHENYL (BAPB-M)CAS: 105112-76-3 Polyimide (PI) material 4,4′-Oxydiphthalic anhydrideCAS: 1823-59-2 Polyimide (PI) material