3845919 -OEChem-02060822582D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3845919 > 2 > ChemIDplus > YX4003000 > NIOSH/YX4003000 > Latrodectus hesperus venom Venom, spider, Latrodectus hesperus YX4003000 > YX4003000 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=YX4003000 $$$$