Description

Oseltamivir Acid Potassium Salt CAS NO 1363339-68-7 is a key pharmaceutical intermediate, specifically the potassium salt of the active metabolite of the antiviral prodrug oseltamivir phosphate. This compound is of critical importance for ensuring the quality and efficacy of final drug formulations targeting influenza viruses. It is primarily required by manufacturers in the pharmaceutical and biotechnology sectors engaged in the synthesis of antiviral medications and advanced research into neuraminidase inhibitors.

Application

• Primary Pharmaceutical Intermediate: Serves as the essential active ingredient for the synthesis of finished dosage forms of antiviral drugs.
• Reference Standard: Used as a high-purity chemical reference standard in analytical laboratories for quality control and method validation.
• Active Pharmaceutical Ingredient (API) Manufacturing: A critical raw material in the production chain for antiviral APIs, ensuring batch consistency and regulatory compliance.
• Research & Development: Utilized in biochemical and pharmacological research to study influenza virus inhibition mechanisms and develop new therapeutic agents.
• Generic Drug Production: A vital component for manufacturers producing generic versions of neuraminidase inhibitor medications.

Basic Information

Item	Details
Product Name	Oseltamivir Acid Potassium Salt
CAS No.	1363339-68-7
Molecular Formula	C16H27N2O4K
Molecular Weight	350.50 g/mol
Synonyms	(3R,4R,5S)-4-Acetamido-5-amino-3-(1-ethylpropoxy)-1-cyclohexene-1-carboxylic Acid Potassium Salt; Oseltamivir Carboxylate Potassium Salt; GS 4071 Potassium Salt; Ro 64-0802 Potassium Salt; Tamiflu Acid Potassium Salt; Oseltamivir Acid K Salt; 5-Amino-4-acetamido-3-(1-ethylpropoxy)-1-cyclohexene-1-carboxylic Acid Potassium Salt
EINECS	Contact for details

Quality Control

Our Oseltamivir Acid Potassium Salt is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets stringent pharmaceutical-grade specifications. Certificates of Analysis (COA) detailing all test results are provided and can be tailored to support regulatory filings for drug master files (DMF) or investigational new drug (IND) applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed in a dry environment to prevent degradation. For long-term storage, consider desiccants or inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥98.0%
Related Substances (HPLC)	Total impurities ≤2.0% Any single unknown impurity ≤0.5%
Water Content (KF)	≤1.0%
Residue on Ignition	Reported on COA
Heavy Metals	≤20 ppm
Microbial Enumeration	Meets Ph. Eur. / USP criteria

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