3728149 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3728149 > 2 > ChemIDplus > 001358765 > 1358-76-5 7,20(2H,19H)-Cyclovobasan, 1,2,18,19-tetradehydro-3,17-epoxy-, (3R,7alpha,20alpha)- Koumine > 1358-76-5 > 001358765 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=001358765 $$$$