Description

Oseltamivir is a potent antiviral prodrug, specifically a neuraminidase inhibitor, used in the treatment and prophylaxis of influenza A and B virus infections. Its primary value lies in its ability to reduce the severity and duration of flu symptoms and prevent viral spread. This active pharmaceutical ingredient (API) is essential for pharmaceutical manufacturers producing antiviral medications, making it a critical component in global public health strategies against seasonal and pandemic influenza.

Application

• Pharmaceutical API: Primary use as the active ingredient in the synthesis of finished dosage forms, most notably the antiviral medication Tamiflu®.
• Influenza Treatment: Formulated into capsules and oral suspensions for the treatment of uncomplicated acute illness due to influenza infection in patients aged 2 weeks and older.
• Influenza Prophylaxis: Used in the manufacture of preventative medications to reduce the likelihood of influenza illness following exposure.
• Clinical Research: Serves as a reference standard and key material in virology research and the development of new antiviral therapies.
• Generic Drug Manufacturing: A vital raw material for producers of generic oseltamivir phosphate formulations worldwide.

Basic Information

Product Name	Oseltamivir
CAS No.	651324-07-1
Molecular Formula	C16H28N2O4
Molecular Weight	312.41 g/mol
Synonyms	Oseltamivir Base; GS 4104; (3R,4R,5S)-4-Acetamido-5-amino-3-(1-ethylpropoxy)-1-cyclohexene-1-carboxylic Acid Ethyl Ester; Ro 64-0796; Ethyl (3R,4R,5S)-4-acetamido-5-amino-3-pentan-3-yloxycyclohex-1-ene-1-carboxylate; Tamiflu Intermediate; Influenza Neuraminidase Inhibitor
EINECS	Contact for details

Quality Control

Our Oseltamivir is manufactured under strict quality management systems. We provide material that meets high-purity standards suitable for pharmaceutical applications, with comprehensive testing to ensure identity, potency, and purity. A detailed Certificate of Analysis (COA) is provided with each batch, confirming compliance with agreed specifications. We support our clients with the documentation necessary for regulatory submissions.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept in a dry environment to prevent degradation. The container should be kept tightly sealed when not in use.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference standard
Identification (HPLC)	Retention time corresponds to reference
Assay (HPLC)	98.0% - 102.0% (on anhydrous basis)
Water Content (KF)	≤ 1.0%
Related Substances (HPLC)	Individual impurity: ≤ 0.5% Total impurities: ≤ 2.0%
Residual Solvents (GC)	Complies with ICH Q3C guidelines
Heavy Metals	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.