3843875 -OEChem-02060822582D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3843875 > 2 > ChemIDplus > XF8884000 > NIOSH/XF8884000 > 11-Monoformylanhydrotetrodotoxin Monoformylanhydrotetrodotoxin Tetrodotoxin, 4,9-anhydro-, 11-formate (ester) XF8884000 > XF8884000 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=XF8884000 $$$$