Oseltamivir

Modify Date: 2026-07-02 21:19:54

Oseltamivir Structure
Oseltamivir structure
Common Name Oseltamivir
CAS Number 196618-13-0 Molecular Weight 312.40
Density 1.2±0.1 g/cm3 Boiling Point 445.4±55.0 °C at 760 mmHg
Molecular Formula C16H28N2O4 Melting Point 109 °C
MSDS N/A Flash Point 223.2±31.5 °C

 Use of Oseltamivir


Oseltamivir (GS 4104) is an orally active influenza virus neuraminidase inhibitor (NAI). Oseltamivir inhibits influenza A/H3N2, A/H1N2, A/H1N1, and B viruses with mean IC50s of 0.67, 0.9, 1.34 and 13 nM, respectively[1].

Summary: Oseltamivir (CAS No.: 196618-13-0), molecular formula C16H28N2O4, molecular weight 312.40, is a white to light yellow powder or crystalline solid with a melting point of 109 °C. For research-use only, not for medical or clinical usage.


 Names

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name oseltamivir
Synonym More Synonyms

 Chemical & Physical Properties

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density 1.2±0.1 g/cm3
Boiling Point 445.4±55.0 °C at 760 mmHg
Melting Point 109 °C
Molecular Formula C16H28N2O4
Molecular Weight 312.40
Flash Point 223.2±31.5 °C
Exact Mass 312.204895
PSA 90.65000
LogP 2.52
Vapour Pressure 0.0±2.4 mmHg at 25°C
Index of Refraction 1.529
InChIKey VSZGPKBBMSAYNT-RRFJBIMHSA-N
SMILES CCOC(=O)C1=CC(OC(CC)CC)C(NC(C)=O)C(N)C1

 Synthetic Route

This table presents publicly reported synthetic routes, reaction conditions, reactants and product information of the compound.

 Synonyms

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

OSELTAMIVIR
(3R,4R,5S)-4-acetamido-5-amino-3-(1-ethylpropoxy)-1-cyclohexene-1-carboxylic acid ethyl ester
Oseltamivir (free base)
TaMvir
GOP-A-Flu
(3R,5S)-ethyl 4-acetamido-5-amino-3-(pentan-3-yloxy)cyclohex-1-enecarboxylate
TaMiflu-Free
TAMIFLU
(3R,4R,5S)-4-acetylamino-5-amino-3(1-ethylpropoxy)-1-cyclohexene-1-carboxylic acid ethyl ester
OSTELTAMIVIR
(3R,4R,5S)-5-amino-4-acetylamino-3-(1-ethyl-propoxy)-cyclohex-1-ene-carboxylic acid ethyl ester
GS 4104
ethyl (3R,4R,5S)-5-aMino-4-acetaMido-3-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylate
[14C]-Oseltamivir
ethyl (3R,4R,5S)-4-acetamido-5-amino-3-(1-ethylpropoxy)-1-cyclohexene-1-carboxylate

 Oseltamivir | FAQ

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What is the molecular weight of oseltamivir?
A: Molecular weight of oseltamivir is 312.40.
Q: What is the SMILES notation of oseltamivir?
A: SMILES notation of oseltamivir is CCOC(=O)C1=CC(OC(CC)CC)C(NC(C)=O)C(N)C1.
Q: What is the English name of oseltamivir?
A: The English name of oseltamivir is oseltamivir.
Q: What are the uses of oseltamivir?
A: Main uses of oseltamivir: Oseltamivir (GS 4104) is an orally active influenza virus neuraminidase inhibitor (NAI). Oseltamivir inhibits influenza A/H3N2, A/H1N2, A/H1N1, and B viruses with mean IC50s of 0.67, 0.9, 1.34 and 13 nM, respectively[1].
Q: What is the polar surface area (PSA) of oseltamivir?
A: Polar surface area (PSA) of oseltamivir is 90.65000.
Q: What is the boiling point of oseltamivir?
A: Boiling point of oseltamivir is 445.4±55.0 °C at 760 mmHg.
Q: What is the LogP of oseltamivir?
A: LogP of oseltamivir is 2.52.
Q: What is the InChIKey of oseltamivir?
A: InChIKey of oseltamivir is VSZGPKBBMSAYNT-RRFJBIMHSA-N.
Q: What is the molecular formula of oseltamivir?
A: Molecular formula of oseltamivir is C16H28N2O4.
Q: What is the CAS number of oseltamivir?
A: CAS number of oseltamivir is 196618-13-0.

 Oseltamivirfactory

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Shanghai Nianxing Industrial Co., Ltd
Dayang Chem (Hangzhou) Co., Ltd.
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