3767517 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3767517 > 2 > ChemIDplus > 072986528 > 1,3-Benzenedicarbonyl dichloride, polymer with 1,4-benzenedicarbonyl dichloride, 2-chloro-1,4-benzenediamine dihydrochloride and 4,4'-sulfonylbis(benzenamine) 1,4-Benzenediamine, 2-chloro-, dihydrochloride, polymer with sulfonylbis(4-benzenamine), 1,4-benzenedicarbonyl dichloride and 1,3-benzenedicarbonyl dichloride 72986-52-8 > 72986-52-8 > 072986528 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=072986528 $$$$