3754500 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3754500 > 2 > ChemIDplus > 068247676 > 68247-67-6 RP-13213 Rubomycin B1 > 68247-67-6 > 068247676 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=068247676 $$$$