Chemical name: 2-amino-6-hydroxy purine CAS NO.: 73-40-5 Formula: C5H5N5O M.W.: 151.13 Structure: Main Specifications: Description: A white or cream white powder. Assay (HClO4): 98.0-102.0% Purity: ≥99.0% Loss on drying ≤0.5% Usage: For intermediate of antiviral API (Acyclovir, Encyclovir) Package: 25 kg/drum, lined with plastic bag