3740821 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3740821 > 2 > ChemIDplus > 039423217 > 39423-21-7 Botropase Thromboserpentin > 39423-21-7 > 039423217 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=039423217 $$$$