Home Display Materials Polyimide (PI) material 1,2,3,4-Cyclobutanetetracarboxylic1,2,3,4-dianhydride (CBDA) 1,2,3,4-Cyclobutanetetracarboxylic1,2,3,4-dianhydride (CBDA) CAS: 4415-87-6 Category: Polyimide (PI) material Related products 3,3′,5,5′-Tetramethylbenzidine (TMB)CAS: 54827-17-7 Polyimide (PI) material 4,4′-Oxydiphthalic anhydrideCAS: 1823-59-2 Polyimide (PI) material 4,4′-Diaminobenzanilide (DABA)CAS: 785-30-8 Polyimide (PI) material Bisphenol AFCAS: 1478-61-1 Polyimide (PI) material