Entecavir 4-Epi Impurity
2-Amino-1,9-dihydro-9-[(1S,3R,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]-6H-purin-6-one
1367369-80-9

4-Epi Entecavir is an isomeric impurity of Entecavir

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