• #LGM Pharma is a Zanamivir CAS# 139110-80-8 API supplier distributor based in the USA. Inquire about DMF, cGMP, price, availability, delivery, purity, and more.
  • #Questions? Call our customer API support number 1-(800)-881-8210.
  • #LGM Pharma offers this active ingredient but not the finished dosage forms.

Product Details:

  • CAS No: 139110-80-8
  • AHFC code: 08:18.3
  • Synonyms: GANA GNA Modified sialic acid Zanamavir ZMR
  • ATC Code: J05AH01
  • Chemical Formula: C17H13ClN4
  • Molecular Weight: 332.3098
  • Assay/Purity: Typically NLT 98%
  • DrugBank: DB00558 (APRD00378)
  • SMILES: CC(=O)N[C,,H]1[C,H](C=C(O[C,H]1[C,H](O)[C,H](O)CO)C(O)=O)N=C(N)N
  • PubChem: 60855
  • IUPAC: (2R,3R,4S)-4-[(diaminomethylidene)amino]-3-acetamido-2-[(1R,2R)-1,2,3-trihydroxypropyl]-3,4-dihydro-2H-pyran-6-carboxylic acid

Additional Details

For the prevention and treatment of influenza A and B.
Zanamivir, an antiviral agent, is a neuraminidase inhibitor indicated for treatment of uncomplicated acute illness due to influenza A and B virus in adults and pediatric patients 7 years and older who have been symptomatic for no more than 2 days. Zanamivir has also been shown to significantly inhibit the human sialidases NEU3 and NEU2 in the micromolar range (Ki 3.7 +/-0.48 and 12.9+/-0.07 microM, respectively), which could account for some of the rare side effects of zanamivir.
Mode of Action:
The proposed mechanism of action of zanamivir is via inhibition of influenza virus neuraminidase with the possibility of alteration of virus particle aggregation and release. By binding and inhibiting the neuraminidase protein, the drug renders the influenza virus unable to escape its host cell and infect others.
Not metabolized
General Reference:
Meindl P, Bodo G, Palese P, Schulman J, Tuppy H: Inhibition of neuraminidase activity by derivatives of 2-deoxy-2,3-dehydro-N-acetylneuraminic acid. Virology. 1974 Apr;58(2):457-63. Pubmed von Itzstein M, Wu WY, Kok GB, Pegg MS, Dyason JC, Jin B, Van Phan T, Smythe ML, White HF, Oliver SW, et al.: Rational design of potent sialidase-based inhibitors of influenza virus replication. Nature. 1993 Jun 3;363(6428):418-23. Pubmed Hata K, Koseki K, Yamaguchi K, Moriya S, Suzuki Y, Yingsakmongkon S, Hirai G, Sodeoka M, von Itzstein M, Miyagi T: Limited Inhibitory Effects of Oseltamivir and Zanamivir on Human Sialidases. Antimicrob Agents Chemother. 2008 Aug 11. Pubmed Sugaya N, Tamura D, Yamazaki M, Ichikawa M, Kawakami C, Kawaoka Y, Mitamura K: Comparison of the clinical effectiveness of oseltamivir and zanamivir against influenza virus infection in children. Clin Infect Dis. 2008 Aug 1;47(3):339-45. Pubmed
Products currently covered by valid US Patents are offered for R&D use in accordance with 35 USC 271(e)+A13(1). Any patent infringement and resulting liability is solely at buyer risk.

API’s From Quality Manufacturers:

  • Cost effective materials based on specific requirements
  • Small quantities for initial research and larger development quantities towards product commercialization


  • Technical packages, letters of access to filed DMFs
  • Complete assistance in any regulatory filings
  • Top quality GMP certified manufacturers
  • Have necessary regulatory credentials


Related YouTube Videos