A fusidane antibiotic
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Active Metabolite(s)
338553-keto Fusidic Acid
Labeled Version(s)
29994Fusidic Acid-d6
Technical Support & Resources

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Fusidic Acid (sodium salt)

Item No. 14825

Technical Information
Formal Name
(4α,8α,9β,13α,14β)-16β-(acetyloxy)- 3α,11α-dihydroxy-29-nordammara-17Z(20),24-dien-21-oic acid, monosodium salt
CAS Number
751-94-0
Synonyms
  • SQ 16,360
Molecular Formula
C31H47O6 • Na
Formula Weight
Purity
≥98%
A crystalline solid
DMF: 14 mg/mlDMSO: 14 mg/mlDMSO:PBS(pH7.2) (1:1): 0.5 mg/mlEthanol: 12.5 mg/ml
SMILES
O[C@@H]1CC[C@@]2(C)[C@](CC[C@@]3(C)[C@@]2([H])[C@H](O)C[C@]4([H])[C@]3(C)C[C@H](OC(C)=O)/C4=C(C([O-])=O)/CC/C=C(C)/C)([H])[C@@H]1C.[Na+]
InChi Code
InChI=1S/C31H48O6.Na/c1-17(2)9-8-10-20(28(35)36)26-22-15-24(34)27-29(5)13-12-23(33)18(3)21(29)11-14-30(27,6)31(22,7)16-25(26)37-19(4)32;/h9,18,21-25,27,33-34H,8,10-16H2,1-7H3,(H,35,36);/q;+1/p-1/b26-20-;/t18-,21-,22-,23+,24+,25-,27-,29-,30-,31-;/m0./
Shipping & Storage Information
Storage
-20°C
Shipping
Room temperature in continental US; may vary elsewhere
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    Product Description

    Fusidic acid is a fusidane antibiotic originally isolated from F. coccineum.1 It is active against the Gram-positive bacteria S. aureus, S. pyogenes, C. diphtheriae, B. subtilis, and C. tetani (MIC50s = 0.01-20 µg/ml) but not the Gram-negative bacteria E. coli, S. typhimurium, and P. vulgaris or the fungi C. albicans and A. fumigatus (MIC50s = >100 µg/ml for all).2 Fusidic acid inhibits ribosomal recycling and protein translocation, processes mediated by elongation factor G (EF-G), in isolated E. coli ribosomes (IC50s = ~0.1 and ~200 µM, respectively).3 Topical administration of fusidic acid (2%) reduces the number of skin colony forming units (CFUs) and levels of TNF-α and IL-6 in a mouse model of methicillin-resistant S. aureus (MRSA) skin wound infection.4

    WARNING This product is not for human or veterinary use.

    References & Product Citations
    Product Description References

    1. Verbist, L. The antimicrobial activity of fusidic acid. J. Antimicrob. Chemother. 25(Suppl. B), 1-5 (1990).

    2. Godtfredsen, W.O., Jahnsen, S., Lorck, H., et alFusidic acid: A new antibiotic. Nature 193, 987 (1962).

    3. Savelsbergh, A., Rodnina, M.V., and Wintermeyer, W. Distinct functions of elongation factor G in ribosome recycling and translocation. RNA 15(5), 772-780 (2009).

    4. Mohamed, M.F., and Seleem, M.N. Efficacy of short novel antimicrobial and anti-inflammatory peptides in a mouse model of methicillin-resistant Staphylococcus aureus (MRSA) skin infection. Drug Des. Devel. Ther. 8, 1979-1983 (2014).