13292-45-0 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-(N-1-piperazinylformimidoyl)-, 21-acetate 3-((1-Piperazinylimino)methyl)rifampicin 4-N-Demethylrifampicin AF/AP BRN 0603769 Demethylrifampicin N-Demethyl-rifampicin N-Demethylrifampin NSC 143416 Rifampicin AF/AP Rifampicin, D-methyl Rifamycin, 3-((1-piperazinylimino)methyl)- (9CI)