3737381 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3737381 > 2 > ChemIDplus > 028501431 > 1,2,4,5-Benzenetetracarboxylic acid, polymer with 4,4'-oxybis(benzenamine) 28501-43-1 > 28501-43-1 > 028501431 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=028501431 $$$$