1H,3H-Benzo(1,2-c:4,5-c')difuran-1,3,5,7-tetrone, polymer with 1,2-benzenediamine, 1,3-benzenediamine, 1,4-benzenediamine, 4-(4-(1-(4-((1,3-dihydro-1,3-dioxo-5-isobenzofuranyl)oxy)phenyl)-1-methylethyl)phenoxy)-1,3-isobenzofurandione, 1,3-isobenzofurandione, 4,4'-((1-methylethylidene)bis(4,1-phenyleneoxy))bis(1,3-isobenzofurandione) and 5,5'-((1-methylethylidene)bis(4,1-phenyleneoxy))bis(1,3-isobenzofurandione) 96557-46-9