Chemical name: 2-amino-1,9-dihydro-9-[(1S,3R,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]- 6H-purin-6-one, monohydrate

Molecular Formula: C₁₂H₁₅N₅O₃·H₂O

Molecular Weight: 295.3

CAS No.: [142217-69-4]

Physical & Chemical properties: White powder

Melting point: 238-240℃

Quality index:

Appearance: White powder

Assay (HPLC): 99%（min）

Related Substances（ HPLC）: Total impurity not more than 1.0%.

Application:  Entecavir is phosphorylated intracellularly to the active triphosphate form which competes with deoxyguanosine triphosphate, the natural substrate of hepatitis B virus reverse transcriptase, thereby inhibiting every stage of the enzyme's activity.

Packing: 1kg/aluminum tin; 25kg/carton barrel.