阿昔洛韦杂质Imp.A(EP):2-[(2-Amino-6-oxo-1,6-dihydro-9H-purin-9-yl)methoxy]ethylAcetateImp.B(EP):2-Amino-1,7-dihydro-6H-purin-6-one(Guanine)Imp.D(EP):2-[(2-Amino-6-oxo-1,6-dihydro-9H-purin-9-yl)methoxy]ethylBenzoateImp.F(EP):N-[9-[(2-Hydroxyethoxy)methyl]-6-oxo-6,9-dihydro-1H-purin-2-yl]acetamideImp.G(EP):2-[[(2-(Acetylamino)-6-oxo-1,6-dihydro-9H-purin-9-yl]methoxy]ethylAcetateImp.H(EP):2-[[2-(Acetylamino)-6-oxo-1,6-dihydro-9H-purin-9-yl]methoxy]ethylBenzoate)