3769673 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3769673 > 2 > ChemIDplus > 075977990 > 75977-99-0 Viscotoxin IVb > 75977-99-0 > 075977990 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=075977990 $$$$