Description

Oseltamivir is a potent antiviral prodrug, widely recognized as the active pharmaceutical ingredient (API) in the neuraminidase inhibitor class. Its primary metabolite, oseltamivir carboxylate, is clinically proven to effectively inhibit the replication of influenza A and B viruses. This compound is essential for the pharmaceutical manufacturing of antiviral medications, serving as the critical raw material for global pandemic preparedness and seasonal flu treatment. Industrial buyers in the pharmaceutical synthesis and fine chemical sectors rely on a consistent, high-purity supply of Oseltamivir CAS NO 196618-13-0 to ensure the efficacy and safety of the final drug product.

Application

• Pharmaceutical API Synthesis: Primary use as the active pharmaceutical ingredient in the manufacture of antiviral capsules and oral suspensions.
• Influenza Treatment Formulations: Direct formulation into finished dosage forms for the treatment and prophylaxis of influenza infections.
• Clinical Research & Development: Serves as a reference standard and key intermediate in the R&D of new antiviral therapies and combination treatments.
• Generic Drug Manufacturing: Critical raw material for producers of generic antiviral medications following patent expiry.
• Pandemic Stockpiling: Sourced by government health agencies and large-scale distributors for strategic national stockpiles against influenza pandemics.
• Veterinary Pharmaceutical Applications: Investigated for use in antiviral treatments for avian and swine influenza in veterinary medicine.

Basic Information

Product Name	Oseltamivir
CAS No.	196618-13-0
Molecular Formula	C16H28N2O4
Molecular Weight	312.41 g/mol
Synonyms	Oseltamivir Phosphate (salt form); GS 4104; (3R,4R,5S)-4-Acetamido-5-amino-3-(1-ethylpropoxy)-1-cyclohexene-1-carboxylic acid ethyl ester; Tamiflu (Brand Name); Ethyl (3R,4R,5S)-4-acetamido-5-amino-3-pentan-3-yloxycyclohex-1-ene-1-carboxylate; Ro 64-0796; Oseltamivir Base; Influenza Neuraminidase Inhibitor
EINECS	Contact for details

Quality Control

Our Oseltamivir is manufactured under strict quality management systems, targeting compliance with major pharmacopoeial standards such as USP and EP. Every batch undergoes rigorous analytical testing including HPLC for assay and impurity profiling, residual solvent analysis, and comprehensive identification tests. A Certificate of Analysis (COA) is provided with each shipment, detailing purity, specific impurities, and physical characteristics to ensure it meets your precise specifications for pharmaceutical use.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic (moisture-sensitive) nature, store under controlled room temperature conditions (15-25°C) in a dry environment. For long-term stability, consider storage under an inert atmosphere or with desiccants.

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: ≤ 1.5%
Residual Solvents (GC)	Complies with ICH Q3C guidelines
Heavy Metals	≤ 20 ppm
Specific Rotation	[α]20/D: Contact for details

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