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Zanamivir | Neuraminidase inhibitor

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Catalog #:

Product Description

Zanamivir is a dihydropyran-based, sialic acid analog inhibitor of the viral enzyme neuraminidase. Zanamivir's mode of action is blockage of sialic acid cleavage, thereby preventing further virus distribution. For type A viruses zanamivir has IC50s of 0.35 nM for the H1N1 subtype, and 1.1 nM for the H3N2 subtype. [1]

In plaque reduction in vitro assays, zanamivir inhibits a wide range of Type A and Type B influenza viruses with IC50s of plaque formation ranging from 5 to 14 nM in laboratory-passaged strains, and 20 to 1600 nM for clinical isolates. In human respiratory epithelial cells, EC90s of virus yields were determined to be less than 0.01 ug/mL at 24h for both H1N1 and H3N2 subtypes. [2]

Technical information:

Chemical Formula:   C12H20N4O7
CAS #:   139110-80-8
Molecular Weight:   332.31
Purity: > 98%
Appearance:   White
Chemical Name:   (2R,3R,4S)-3-acetamido-4-guanidino-2-((1R,2R)-1,2,3-trihydroxypropyl)-3,4-dihydro-2H-pyran-6-carboxylic acid
Solubility:   Up to 50 mM in DMSO
Synonyms:   Relenza, Zanamavir, Sialic acid derivative

Shipping Condition: The product is shipped in a glass vial at ambient temperature.
Storage condition: For longer shelf life, store solid powder at 4oC desiccated, or store DMSO solution at -20oC.


1. Colman et al., Zanamivir: an influenza neuraminidase inhibitor. Expert Rev. Anti. Infect. Ther. 2005, 3(2), 191-199.
2. Elliott et al., Zanamivir: from drug design to the clinic. Phil. Trans. R. Soc. Lond. 2001, 356, 1885-1893.
3. McNicholl et al., Neuraminidase Inhibitors: Zanamivir and Oseltamivir. Annals Pharmacother. 2001, 35, 57-70.

Other Information:

Product Specification (pdf)
MSDS (pdf)
Certificate of Analysis is available upon request.

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