Chemical Name: (2S,16Z,18E,20S,21S,22R,23R,24R,25S,26R,27S,28E)-25-(Acetyloxy)-5,6,21,23-tetrahydroxy-27-methoxy-2,4,11,16,20,22,24,26-octamethyl-2,7-(epoxypentadeca[1,11,13]trienimino)benzofuro[4,5-e]pyrido[1,2-a]benzimidazole-1,15(2H)-dione
Biological ActivityRifaximin is a pregnane X receptor (PXR) agonist; antibiotic. Reduces number of colon tumors and suppresses expression of TNFα and Il-1β induced in a colon cancer, PXR-humanized mouse model. Increases apoptosis and decreased proliferation in HT-29 cells. Exhibits low gastrointestinal absorption while retaining its antibacterial activity. Active against gram-positive and gram-negative bacteria.
The technical data provided above is for guidance only.
For batch specific data refer to the Certificate of Analysis.
Tocris products are intended for laboratory research use only, unless stated otherwise.
Activation of intestinal human pregnane X receptor protects against azoxymethane/dextran sulfate sodium-induced colon cancer.
Cheng et al.
Rifaximin: in vitro and in vivo antibacterial activity-a review.
Jiang et al.
Structural elucidation of the rifa. Ph. Eur. Impurity H.
Stradi et al.
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Rifaximin was used against E.coli in comparison with Rifampine. Resistance study of E.coli was being carried out.