3736550 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3736550 > 2 > ChemIDplus > 026298817 > (5,5'-Biisobenzofuran)-1,1',3,3'-tetrone, polymer with 4,4'-oxybis(benzenamine) 117116-84-4 26298-81-7 4,4'-Diaminodiphenyl ether, 3,3',4,4'-biphenyltetracarboxylic dianhydride copolymer > 117116-84-4 26298-81-7 > 026298817 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=026298817 $$$$