3781545 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3781545 > 2 > ChemIDplus > 087903386 > 87903-38-6 Benzenesulfonic acid, 2,4-diamino-, calcium salt (2:1), polymer with 1,3-benzenediamine, 1,3-benzenedicarbonyl dichloride and 1,4-benzenedicarbonyl dichloride, benzoyl chloride-capped > 87903-38-6 > 087903386 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=087903386 $$$$