3843147 -OEChem-02060822582D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3843147 > 2 > ChemIDplus > WG9945000 > NIOSH/WG9945000 > 9-(2-Sulfophenyl)-6-hydroxy-3-isoxanthenone disodium Benzenesulfonic acid, o-(3,6,9-trihydroxyxanthen-9-yl)-, gamma-sultone, disodium salt Spiro(3H-2,1-benzoxathiole-3,9'(9H)-xanthene)-3',6'-diol, 11-dioxide, disodium salt Sulfonefluorescein disodium WG9945000 > WG9945000 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=WG9945000 $$$$