3768356 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3768356 > 2 > ChemIDplus > 073664230 > 73664-23-0 Acetamide, 2-((1,2-dihydro-5,6,17,19,21-pentahydroxy-23-methoxy-2,4,12,16,18,20,22-heptamethyl-1,11-dioxo-2,7-(epoxypentadeca(1,11,13)trienimino)naphtho(2,1-b)furan-9-yl)oxy)-N,N'-ditolyl-, 21-acetate Rifamycin B ditolylamide > 73664-23-0 > 073664230 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=073664230 $$$$