15105-92-7 2,7-(Epoxypentadeca[1,11,13]trienimino)naphtho[2,1-b]furan, rifamycin deriv. 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-, 21-acetate, monosodium salt Monosodium rifamycin SV NSC133100 RIFAMYCIN SV Rifamycin Rifamycin sodium salt Rifamycin, monosodium salt Rifocin