Home Display Materials Polyimide (PI) material 1,2,4,5-cyclohexanetetracarboxylic dianhydride (HPMDA) 1,2,4,5-cyclohexanetetracarboxylic dianhydride (HPMDA) CAS: 2754-41-8 Category: Polyimide (PI) material Related products p-PhenylenediaMine(p-PDA)CAS: 106-50-3 Polyimide (PI) material 2,2′-Bis(trifluoromethyl)-4,4′- diaminodiphenyl ether (6FODA)CAS: 344-48-9 Polyimide (PI) material Bisphenol AFCAS: 1478-61-1 Polyimide (PI) material 4,4′-Oxydiphthalic anhydrideCAS: 1823-59-2 Polyimide (PI) material