Home Display Materials Polyimide (PI) material 4,4'-Oxydiphthalic anhydride 4,4′-Oxydiphthalic anhydride CAS: 1823-59-2 Category: Polyimide (PI) material Related products Bisphenol AFCAS: 1478-61-1 2,2′-Bis(4-aminophenoxyphenyl) propane (BAPP)CAS: 13080-86-9 3,3′,5,5′-Tetramethylbenzidine (TMB)CAS: 54827-17-7 2,2′-Bis(trifluoromethyl)-4,4′- diaminodiphenyl ether (6FODA)CAS: 344-48-9