3744050 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3744050 > 2 > ChemIDplus > 053660416 > 1H,3H-Benzo(1,2-c:4,5-c')difuran-1,3,5,7-tetrone, polymer with 5,5'-carbonylbis(1,3-isobenzofurandione) and 3,3'-sulfonylbis(benzenamine) 53660-41-6 > 53660-41-6 > 053660416 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=053660416 $$$$