3741221 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3741221 > 2 > ChemIDplus > 040492135 > 40492-13-5 EINECS 254-939-8 Sodium hydrogen 4-amino-5-hydroxynaphthalene-1,6-disulphonate > 40492-13-5 > 040492135 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=040492135 $$$$