Oseltamivir phosphate

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Description: Influenza virus neuraminidase inhibitor; antiviral prodrug
Alternative Names: GS 4104
Chemical Name: Ethyl (3R,4R,5S)-4-Acetamido-5-amino-3-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylate phosphate
Purity: ≥98% (HPLC)

Biological Activity for Oseltamivir phosphate

Oseltamivir phosphate is a viral neuraminidase inhibitor prodrug; metabolized to GS 4071. Metabolite exhibits potent inhibition of neuraminidase from multiple influenza strains (IC50 values range from 0.3 to 2 nM). Inhibits cellular effects of influenza infection in vitro (IC50 values range from 0.6 to 150 nM). Displays highest potency against H1N1 and H3N2 influenza A strains. Inhibits H1N1 influenza infection in mice.

Compound Libraries for Oseltamivir phosphate

Oseltamivir phosphate is also offered as part of the Tocriscreen Antiviral Library. Find out more about compound libraries available from Tocris.

Technical Data for Oseltamivir phosphate

M. Wt 410.4
Formula C16H28N2O4.H3PO4
Storage Store at -20°C
Purity ≥98% (HPLC)
CAS Number 204255-11-8
PubChem ID 78000
Smiles O[P](O)(O)=O.CCOC(=O)C1=C[C@@H](OC(CC)CC)[C@H](NC(C)=O)[C@@H](N)C1

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.

Tocris products are intended for laboratory research use only, unless stated otherwise.

Solubility Data for Oseltamivir phosphate

Solvent Max Conc. mg/mL Max Conc. mM
DMSO 41.04 100
water 41.04 100

Preparing Stock Solutions for Oseltamivir phosphate

The following data is based on the product molecular weight 410.4. Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Select a batch to recalculate based on the batch molecular weight:
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 2.44 mL 12.18 mL 24.37 mL
5 mM 0.49 mL 2.44 mL 4.87 mL
10 mM 0.24 mL 1.22 mL 2.44 mL
50 mM 0.05 mL 0.24 mL 0.49 mL

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Product Datasheets for Oseltamivir phosphate

References for Oseltamivir phosphate

References are publications that support the biological activity of the product.

Kim et al (1997) Influenza neuraminidase inhibitors possessing a novel hydrophobic interaction in the enzyme active site: design, synthesis, and structural analysis of carbocyclic sialic acid analogues with potent anti-influenza activity. J.Am.Chem.Soc. 119 681 PMID: 16526129

Mendel et al (1998) Oral administration of a prodrug of the influenza virus neuraminidase inhibitor GS 4071 protects mice and ferrets against influenza infection. Antimicrob.Agents Chemother. 42 640 PMID: 9517945

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Citations for Oseltamivir phosphate

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