... of Polygonum cuspidatum .Molecular formula: C14H12O3Molecular weight: 228.24Action and Uses:Antibiotic antivirus , antitumor , resists the hepatitis , ... oxidize , have potential prevention and cure cardiovascular disease , gives protection against cancer , antivirus and immune regulating action , its ... cool & dry area, keep away from the direct light and heat.Shelf life: Two years if properly stored ...