Synonyms: 2,7-(Epoxypentadeca[1,11,13]trienimino)naphtho[2,1-b]furan-1,11(2H)-dione,5,6,9,17,19,21-hexahydroxy-23-methoxy-2,4,12,16,18,20,22-heptamethyl-8-morpholino-,21-acetate (8CI); 2,7-(Epoxypentadeca[1,11,13]trienimino)naphtho[2,1-b]furan,rifamycin deriv.; 3-Morpholinorifamycin SV; Ba 41137; Ciba 41137