3729046 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3729046 > 2 > ChemIDplus > 003443047 > 1,3-Naphthalenedisulfonic acid, 4-amino-6-((4'-((8-amino-1-hydroxy-3,6-disulfo-2-naphthalenyl)azo)-3,3'-dimethoxy(1,1'-biphenyl)-4-yl)azo)-5-hydroxy-, tetrasodium salt 2,7-Naphthalenedisulfonic acid, 5-amino-3-((4'-((4-amino-5-hydroxy-1,3-disulfo-6-naphthalenyl)azo))((3,3'-dimethoxy)(1,1'-biphenyl)-4-yl)azo)-4-hydroxy-, tetrasodium salt 3443-04-7 > 3443-04-7 > 003443047 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=003443047 $$$$