3800181 -OEChem-02060822582D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3800181 > 2 > ChemIDplus > 095228969 > 1H,3H-Benzo(1,2-c:4,5-c')difuran-1,3,5,7-tetrone, polymer with 5,5'-carbonylbis(1,3-isobenzofurandione) and 4,4'-sulfonylbis(benzenamine) 4,4'-Diaminodiphenyl sulfone, pyromellitic dianhydride, 3,3',4,4'-benzophenonetetracarboxylic dianhydride polymer 95228-96-9 > 95228-96-9 > 095228969 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=095228969 $$$$