Formulation: A crystalline solid
Formal Name: (3E,5E,8S,9E,11S,12R,13E,15E,18S)-3-[[[6-deoxy-4-O-(3,5-dichloro-2-ethyl-4,6-dihydroxybenzoyl)-2-O-methyl-β-D-mannopyranosyl]oxy]methyl]-12-[[6-deoxy-5-C-methyl-4-O-(2-methyl-1-oxopropyl)-β-D-lyxo-hexopyranosyl]oxy]-11-ethyl-8-hydroxy-18-[(1R)-1-hydroxyethyl]-9,13,15-trimethyl-oxacyclooctadeca-3,5,9,13,15-pentaen-2-one
Purity: ≥95%
Formula Markup: C52H74Cl2O18
Formula Weight: 1058
Shelf life (days): 1460
CAS Number: 873857-62-6
Notes: Fidaxomycin is a natural macrocyclic antibiotic that inhibits RNA polymerase with selectivity for Gram-positive bacteria over Gram-negative bacteria (IC50s = 0.4 and 6 μM, respectively).{25092} It has potent antibacterial activity against most Gram-positive bacteria and effectively targets the Gram-positive C. difficile (MIC = 12 ng/ml).{25092} Orally administered fidaxomycin exhibits minimal systemic bioavailability resulting in maximal gastrointestinal tract distribution.{25092} Fidaxomycin is effective in clearing C. difficile infections while sparing Gram-negative bacteria in the gut.{25090,25089}
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