3766718 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3766718 > 2 > ChemIDplus > 072393976 > 3-Carbomethoxy-rifamycin S 72393-97-6 Rifamycin, 1,4-dideoxy-1,4-dihydro-3-(methoxycarbonyl)-1,4-dioxo- > 72393-97-6 > 072393976 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=072393976 $$$$