1.specification:
product name |
oseltamivir phosphate |
other name |
tamiflu |
specification |
ep/usp |
cas |
204255-11-8 |
package |
25kg net per drum. |
stock |
fresh stock; good price; samples available |
molecular structure |
|
molecular formula |
c16h28n2o4.h3po4 |
molecular weight |
410.40 |
item |
specification |
result |
assay (on anhydrous basis) |
98.0%-102.0% |
99.2% |
identification |
ir |
ir similar to the working standard |
total impurities |
nmt 1.0% |
0.7% |
max single impurity |
nmt 0.5% |
0.3% |
specific rotation |
-27.0°~ -35.0° |
-31.0° |
limit of ethanol |
nmt 0.3% |
0.1% |
limit of toluene |
nmt 0.089% |
nd |
description |
white to off-white powder |
off-white powder |
solubility |
soluble in water and methanol |
complies |
water content by kf |
nmt 2.0% |
0.3% |
loss on drying |
nmt 0.5% |
0.3% |
heavy metals |
nmt 20ppm |
complies |
storage |
cool and dry |
|
conclusion: |
the results conform with enterprise standard. |