Tamiflu; Ethyl (3R,4R,5S)-4-acetamido-5-amino-3-pentan-3-yloxycyclohexene-1-carboxylate phosphate
Kept In Closed Container,Protected From Light.
Oseltamivir phosphate is a novel neuraminidase (NA) inhibitor.
It is used for the treatment and prevention of influenza virus infection, bronchitis accompanying infection, pneumonia, general pain, and severe fever, and is especially effective against influenza A and B viruses.
|Appearance||White or almost white powder|
|Solubility||Free soluble in water and in methanol,practically insoluble in methylene chloride.|
|Identification||Meet the requirements|
Specific Optical Rotation
- 30.7 to -32.6(anhydrous substance),measured at 25℃.
Infrared Abosorption Spectrophotometry
Meet the requirements
|Tests||Meet the requirements|
|Limit for Impurity|
Impurity B NMT 100 ppm ≤0.00 %
Impurity H NMT≤0.15 %
|Impurity C NMT≤0.30 %|
|Each Unspecified Impurity NMT≤0.10 %|
Total Impurities NMT≤0.70 %
|Assay||98.5 ~ 102.0 %(Anhydrous Substance)|