(9S,12E,14S,15S,16S,17R,18R,19R,20S,21S,22E,24Z)-2-(Diethylamino)-5,6,16,18,20-pentahydroxy-14-methoxy-7,9,15,17,19,21,25-heptamethyl-9,4-(epoxypentadeca(1,11,13)trienimino)furo(2',3':7,8)naphtho(1,2-d)thiazole-10,26(9H)-dione, 16-acetate 113102-19-5 MDL 62,769 Rifamexil Rifamexil [USAN:INN] Rifamycin P, 2'-(diethylamino)-