Home Display Materials Polyimide (PI) material 4-Phenylethynylphthalic anhydride (PEPA) 4-Phenylethynylphthalic anhydride (PEPA) CAS: 119389-05-8 Category: Polyimide (PI) material Related products 4,4′-Diaminodiphenylmethane (MDA)CAS: 101-77-9 3,5-Diaminobenzoic acid (DABA)CAS: 535-87-5 2,2′-Bis(trifluoromethyl)-4,4′- diaminodiphenyl ether (6FODA)CAS: 344-48-9 2,2-bis(4-cyanatophenyl)propane (BCP)CAS: 1156-51-0