Entecavir 99%min Pharmaceutical Nucleoside Antivirus products made in china

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1 Kilogram	Negotiable

1 Kilogram

Negotiable

Entecavir Entecavir 99% Entecavir API

99%min

Entecavir 【Appearance】	A white to nearly white crystalline powder, odorless.
Solubility	Very slightly soluble in water, slightly soluble in methanol, practically insoluble in aether.
Specific rotation	+24°～ +28°
【Identification】
（1）	The retention time of the principle peak obtained from the test solution is identical with that obtained from reference solution.
（2）	The infrared absorption spectrum is identical with that of reference.
【Inspection】
PH	5.5～7.5
Related substances
(1)	Single largest unknown≤0.10％
(2)	Total impurities≤0.30％
Enantiomers	≤0.2％
Methanol	≤0.3％
Dichloromethane	≤0.06％
n-Hexane	≤0.029％
Tetrahydrofuran	≤0.072％
N,N-dimethylformamide	≤0.088％
Toluene	≤0.089％
Water	5.8％～6.5％
Residual on ignition	≤0.1%
Heavy metal	≤20ppm
【Assay 】	98.0%~102.0％(C12H15N5O3, on anhydrous basis)