Synonyms: PF-61;NSC 144144;NCI 144-144;Rifamycin SV, 8-(1-pyrrolidinylmethyl)-;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-(1-pyrrolidinylmethyl)-, 21-acetate;4075-42-7;NSC144144;NSC-144144;LS-64230