Appearance White crystalline powder, odorless
Solubility Freely soluble in anhydrous ethanol, soluble in methylene chloride Practically soluble in water
Identification
HPLC The appearance time of docetaxel is concordant with the appearance time form docetaxel standard
IR The spectrum of docetaxel is concordant with the spectrum of obtain from docetaxel standard
Clarity of the solution Solution S is not more intensely colored than reference suspension Ⅱ
Color the solution Less than the reference solution B5
Specific rotation -38.5~-41.5°
Related substance
Impurity A≤0.2%
Impurity B≤0.3%
Impurity C≤0.15%
Impurity E≤0.15%
Other single impurity≤0.5%
Sum of impurities ≤1.0%
Dichloromethane ≤0.06%
N-hexane ≤0.029%
Ethyl acetate ≤0.5%
Acetone ≤0.5%
Methanol ≤0.3%
Water ≤1.5%
Sulphated ash ≤0.1%
metals ≤20ppm
Bacterial endotoxins <0.3IU/mg
Assay 97.5~102.0%