3731191 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3731191 > 2 > ChemIDplus > 009013201 > 9013-20-1 Streptavidin > 9013-20-1 > 009013201 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=009013201 $$$$