3812620 -OEChem-02060822582D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3812620 > 2 > ChemIDplus > 129916445 > 129916-44-5 Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis(5-((4-((4-sulfophenyl)azo)phenyl)azoxy)-, tetrasodium salt > 129916-44-5 > 129916445 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=129916445 $$$$