3767489 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3767489 > 2 > ChemIDplus > 072968673 > 5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with 4,4'-oxybis(benzenamine) and 3,3'-(sulfonylbis(4,1-phenyleneoxy))bis(benzenamine) 72968-67-3 Benzenamine, 3,3'-(sulfonylbis(4,1-phenyleneoxy))bis-, polymer with4,4'-oxybisbenzenamine and 1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid > 72968-67-3 > 072968673 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=072968673 $$$$