Oseltamivir

Also known as: Tamiflu, GS 4104, GOP-A-Flu, Tamvir, Ebilfumin, Enfluvir, ethyl (3R,4R,5S)-4-acetamido-5-amino-3-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylate, ethyl (3R,4R,5S)-5-amino-4-acetamido-3-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylate

Oseltamivir (CAS 196618-13-0) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C16H28N2O4 and a molecular weight of 312.40 g/mol. Key properties include a melting point of 109 °C, a boiling point of 445.4±55.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 223.2±31.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 196618-13-0
Jingsj CID: J-1968953-3
Molecular Formula: C₁₆H₂₈N₂O₄
Molecular Weight: 312.40 g/mol
Category: Organic Compounds
Last updated: 8/21/2026

Request MSDS / TDS

No offers for this compound yet.

Request a quote

Physicochemical Properties

Melting Point	109 °C
Boiling Point	445.4±55.0 °C at 760 mmHg
Density	1.2±0.1 g/cm3
Flash Point	223.2±31.5 °C
Exact Mass	312.204895
PSA	90.65000
LogP	2.52
Vapor Pressure	0.0±2.4 mmHg at 25°C
Refractive Index	1.529

Activity & Biological Data

Additional Information	[1]. O Ferraris, et al. Sensitivity of Influenza Viruses to Zanamivir and Oseltamivir: A Study Performed on Viruses Circulating in France Prior to the Introduction of Neuraminidase Inhibitors in Clinical Practice. Antiviral Res. 2005 Oct;68(1):43-8. [2]. Smee DF, et al. Activities of JNJ63623872 and oseltamivir against influenza A H1N1pdm and H3N2 virus infections in mice. Antiviral Res. 2016 Dec;136:45-50. [3]. Ilyushina NA, et al. Amantadine-oseltamivir combination therapy for H5N1 influenza virus infection in mice. Antivir Ther. 2007;12(3):363-70. [4]. Ilyushina NA, et al. Oseltamivir-ribavirin combination therapy for highly pathogenic H5N1 influenza virus infection in mice. Antimicrob Agents Chemother. 2008 Nov;52(11):3889-97. [5]. Smee DF, et al. Combinations of oseltamivir and peramivir for the treatment of influenza A (H1N1) virus infections in cell culture and in mice. Antiviral Res. 2010 Oct;88(1):38-44.

Additional Information

[1]. O Ferraris, et al. Sensitivity of Influenza Viruses to Zanamivir and Oseltamivir: A Study Performed on Viruses Circulating in France Prior to the Introduction of Neuraminidase Inhibitors in Clinical Practice. Antiviral Res. 2005 Oct;68(1):43-8. [2]. Smee DF, et al. Activities of JNJ63623872 and oseltamivir against influenza A H1N1pdm and H3N2 virus infections in mice. Antiviral Res. 2016 Dec;136:45-50. [3]. Ilyushina NA, et al. Amantadine-oseltamivir combination therapy for H5N1 influenza virus infection in mice. Antivir Ther. 2007;12(3):363-70. [4]. Ilyushina NA, et al. Oseltamivir-ribavirin combination therapy for highly pathogenic H5N1 influenza virus infection in mice. Antimicrob Agents Chemother. 2008 Nov;52(11):3889-97. [5]. Smee DF, et al. Combinations of oseltamivir and peramivir for the treatment of influenza A (H1N1) virus infections in cell culture and in mice. Antiviral Res. 2010 Oct;88(1):38-44.

Frequently Asked Questions

What is the CAS number of Oseltamivir?

The CAS number of Oseltamivir is 196618-13-0.

What are the molecular formula and molecular weight of Oseltamivir?

Oseltamivir has molecular formula C16H28N2O4 and molecular weight 312.40 g/mol.

What are the upstream and downstream products of Oseltamivir?

For Oseltamivir, Upstream Products: Ethyl (3R,4R,5S)-4-acetamido-5-azido-3-(1-ethylpropoxy)-1-cyclohexene-1-carboxylate, Ethanol; Downstream Products: Oseltamivir phosphate.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "Oseltamivir (CAS 196618-13-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1968953-3 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.