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Sigma-Aldrich

RIFAXIMIN (C005B-379523)

General description Chemical structure: macrolide Application Rifaximin is a semisynthetic analog of rifamycin with poor absorptivity. It selectively inhibits ( E.

Description

General description

Chemical structure: macrolide

Application

Rifaximin is a semisynthetic analog of rifamycin with poor absorptivity. It selectively inhibits (E. coli, B subtilis) bacterial DNA-dependent RNA polymerase by a mechanism similar to rifabutin, β subunit binding. It is effective against aerobic and anaerobic Gram-positive and Gram-negative bacteria. It is active against species of Staphylococcus, Streptococcus and Enterococcus. It is less active against species of Enterobacteriaceae. Rifaximin is a non-systemic, gastrointestinal site-specific antibiotic. It has a pyridoimidazole ring, making it non-absorbable. Rifaximin is a pregnane X receptor (PXR) activator.

Biochem/physiol Actions

Rifaximin is a semisynthetic analog of rifamycin with poor absorptivity. Mode of action: selectively inhibits (E. coli, B subtilis) bacterial DNA-dependent RNA polymerase by mechanism similar to rifabutin, β subunit binding.
Antimicrobial spectrum: Aerobic and anaerobic Gram-positive and Gram-negative bacteria. Active against species of Staphylococcus, Streptococcus and Enterococcus; less active against species of Enterobacteriaceae.€ 

Preparation Note

Practically insoluble in water, soluble in acetone and methanol.

Other Notes

Keep container tightly closed in a dry and well-ventilated place.

Specifications
UPC:
51111716
Condition:
New
Weight:
1.00 Ounces
HazmatClass:
No
Quantity:
1
Unit of Measurement:
GM
MPN:
R9904-1G
CAS:
80621-81-4
Controlled Substances and Cyanide:
Yes
Catalog No. C005B-379523
Price: $340.04
List Price: $377.82
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