Entecavir Enantiomer ;

(1R,3S,4R)-Entecavir ;

2-Amino-9-[(1R,3S,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylidene cyclopentyl]-6,9-dihydro-3H-purin-6-one ;

CAS # 188399-46-4 ;

C12H15N5O3 ;

MW: 277.28 ;