Home Display Materials Polyimide (PI) material 3,3,4,4-diphenylsulfonetetracarboxylicdianhydride (DSDA) 3,3,4,4-diphenylsulfonetetracarboxylicdianhydride (DSDA) CAS: 2540-99-0 Category: Polyimide (PI) material Related products Bis(4-aminophenyl)terephthalate (BAPT)CAS: 16926-73-1 4,4′-Diaminobenzanilide (DABA)CAS: 785-30-8 2,2′-Bis(4-aminophenoxyphenyl) propane (BAPP)CAS: 13080-86-9 Pyromellitic Dianhydride (PMDA)CAS: 89-32-7