3744543 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3744543 > 2 > ChemIDplus > 054693684 > 54693-68-4 Tanshinone > 54693-68-4 > 054693684 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=054693684 $$$$