13553-79-2 2,7-(Epoxypentadeca[1,11,13]trienimino)naphtho[2,1-b]furan-1,6,9,11(2H)-tetrone, -5,17,19,21-tetrahydroxy-23-methoxy-2,4,12,16,18,20,22-heptamethyl-, 21-acetate 2,7-(Epoxypentadeca[1,11,13]trienimino)naphtho[2,1-b]furan-1,6,9,11(2H)-tetrone, 5,17,19,21-tetrahydroxy-23-methoxy-2,4,12,16,18,20,22-heptamethyl-, 21-acetate NCI 144-130 NSC144130 Rafamycin S Rifamycin S Rifamycin, 1,4-dideoxy-1,4-dihydro-1,4-dioxo- Rifomycin S WLN: T C6 B65-24- A D E 2BC G& AV DV GV LO NO F&VM OU B&U D&U MHT&&TJ IQ J1 M1 QO1 R1 SOV1 T1 UQ V1