英文别名Rifaximin Impurity G; Rifaximin EP Impurity G; Rifaximin BP Impurity G; 6-O,14-Didehydro-Rifaximin; Rifaximin Impurity 7; (2S,7Z,16Z,18E,20S,21S,22R,23R,24R,25S,26R,27S,28E)-5,21,23-Trihydroxy-27-methoxy-2,4,11,16,20,22,24,26-octamethyl-1,6,15-trioxo-1,2,6,7-tetrahydro-2,7-(epoxypentadeca[1,11,13]trienonitrilo)[1]benzofuro-[4,5-e]pyrido[1,2-a]benzimidazol-25-yl acetate 
