3767035 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3767035 > 2 > ChemIDplus > 072749838 > 5,5'-(Carbonyldiimino)bis(2-((1-((2-methoxy-5-sulfophenyl)amino)-1,3-dioxo-2-butyl)azo)benzoic acid), tetrasodium salt 72749-83-8 Benzoic acid, 3,3'-(carbonyldiimino)bis(6-((1-(((2-methoxy-5-sulfophenyl)amino)carbonyl)-2-oxopropyl)azo)-, tetrasodium salt > 72749-83-8 > 072749838 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=072749838 $$$$