Rifamycin PH; Stereoisomer of25-(acetyloxy)-5,6,21,23-tetrahydroxy-27-methoxy-2,4,16,20,22,24,26-heptamethyl-2,7-(epoxypentadeca[1,11,13]trienimino)benzofuro[4,5-a]phenazine-1,15(2H)-dione;2,7-(Epoxypentadeca[1,11,13]trienimino)benzofuro[4,5-a]phenazine-1,15(2H)-dione,25-(acetyloxy)-5,6,21,23-tetrahydroxy-27-methoxy-2,4,16,20,22,24,26-heptamethyl-,(2S,16Z,18E,20S,21S,22R,23R,24R,25S,26R,27S,28E)- (9CI); NCI 144-137; Rifazine; 2,7-(Epoxypentadeca[1,11,13]trienimino)benzofuro[4,5-a]phenazine,rifazine deriv.;2,7-(Epoxypentadeca[1,11,13]trienimino)benzofuro[4,5-a]phenazine-1,15(2H)-dione,25-(acetyloxy)-5,6,21,23-tetrahydroxy-27-methoxy-2,4,16,20,22,24,26-heptamethyl-,[2S-(2R*,16Z,18E,20R*,21R*,22S*,23S*,24S*,25R*,26S*,27R*,28E)]-;2,7-(Epoxypentadeca[1,11,13]trienimino)benzofuro[4,5-a]phenazine-1,15(2H)-dione,5,6,21,23,25-pentahydroxy-27-methoxy-2,4,16,20,22,24,26-heptamethyl-,25-acetate (7CI,8CI); 

methyl (2S)-3-hydroxy-2-methylpropanoate; (S)-Methyl 3-hydroxy-2-methylpropanoate;80657-57-4; (S)-(+)-3-Hydroxy-2-methylpropionic Acid Methyl Ester; 

Rifamycin L 105; L 105(ansamacrolide antibiotic); Rifamycin L 105SV;2,7-(Epoxypentadeca[1,11,13]trienimino)benzofuro[4,5-e]pyrido[1,2-a]benzimidazole-1,15(2H)-dione,25-(acetyloxy)-5,6,21,23-tetrahydroxy-27-methoxy-2,4,11,16,20,22,24,26-octamethyl-,(2S,16Z,18E,20S,21S,22R,23R,24R,25S,26R,27S,28E)-; L 105;2,7-(Epoxypentadeca[1,11,13]trienimino)benzofuro[4,5-e]pyrido[1,2-a]benzimidazole-1,15(2H)-dione,25-(acetyloxy)-5,6,21,23-tetrahydroxy-27-methoxy-2,4,11,16,20,22,24,26-octamethyl-,[2S-(2R*,16Z,18E,20R*,21R*,22S*,23S*,24S*,25R*,26S*,27R*,28E)]-; Xifaxan; refaximin;Rifaximin; L 105SV; 

2S-Acetyloxy-5,6,21,23-tetrahydroxy-27-methoxy-2,4,11, 16,20,22,24,26-octamethyl-2,7-(epoxypentoeleca(1,11,13)trienimino)benzofuro[4,5-e]pyride[1,2-a]benzimidazole-1,15(2H)-dione;Rifaximin;