3809935 -OEChem-02060822582D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3809935 > 2 > ChemIDplus > 114839951 > 114839-95-1 2,7-Naphthalenedisulfonic acid, 4-((2,4-dihydroxy(hydroxymethyl)-5-((4-((4-nitro-2-sulfophenyl)amino)phenyl)azo)phenyl)azo)-5-hydroxy-, sodium salt 2,7-Naphthalenedisulfonic acid, 4-((2,4-dihydroxy(hydroxymethyl)phenyl)azo)-5-hydroxy-, coupled with diazotized 2-((4-aminophenyl)amino)-5-nitrobenzenesulfonic acid, sodium salts > 114839-95-1 > 114839951 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=114839951 $$$$