2,7-(Epoxypentadeca(1,11,13)trienimino)naphtho(2,1-b)furan-1,11(2H)-dione, 5,6,9,17,19,21-hexahydroxy-2,4,12,16,18,20,22-heptamethyl-23-methoxy-8-(diethylaminomethyl)-, 21-acetate 4075-41-6 NCI 145-666 NSC 173706 PF-42 Rifamycin PF 42 Rifamycin SV, 8-(diethylaminomethyl)-