3809767 -OEChem-02060822582D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3809767 > 2 > ChemIDplus > 113833548 > 1-Na phthalenesulfonic acid, 4-hydroxy-3-((4-(((3-((2-(sulfooxy)ethyl)sulfonyl)phenyl)amino)carbonyl)phenyl)azo), sodium salt 1-Naphthalenesulfonic acid, 4-hydroxy-3-((4-(((3-((2-(sulfooxy)ethyl)sulfonyl)phenyl)amino)carbonyl)phenyl)azo)-, disodium salt 113833-54-8 > 113833-54-8 > 113833548 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=113833548 $$$$