3817897 -OEChem-02060822582D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3817897 > 2 > ChemIDplus > 157577996 > 157577-99-6 2,7-Naphthalenedisulfonic acid, 4-amino-3-((4-(((4-((2,4-diaminophenyl)azo)phenyl)sulfonyl)amino)phenyl)azo)-5-hydroxy-6-(phenylazo)-, disodium salt > 157577-99-6 > 157577996 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=157577996 $$$$