Rifaximin BP Impurity H ;
16-Desmethyl-16-Hydroxymethyl Rifaximin ;
(2S,16Z,18E,20S,21S,22R,23R,24R,25S,26R,27S,28E)-5,6,21,23-Tetrahydroxy-16-(hydroxymethyl)-27-methoxy-2,4,11,20,22,24,26-heptamethyl-1,15-dioxo-1,2-dihydro-2,7-(epoxypentadeca[1,11,13] trienoimino)[1]benzofuro-[4,5-e]pyrido[1,2-a]benzimidazol-25-yl acetate ;
CAS # 1210022-90-4 ;
C43H51N3O12 ;
MW: 801.88 ;