Commodity:Diacetyl acyclovir Molecular Formula:C12H15N5O5 Structural Formula: Uses:Intermediate of acyclovir Specifications: Item Standard Appearance White or off white crystalline powder Assay e98.0% 7-diacetylacyclovir d0.5% Loss of drying d1.0% Heavy metal d10ppm Any other impurity d1.0% The sum of guanine monacetyl guanine, diacetyl guanine d2.0%