Fig. 1From: Characterization and mechanisms of anti-influenza virus metabolites isolated from the Vietnamese medicinal plant Polygonum chinense Chemical structures of substances isolated from P. chinense. PC1: quercetin; PC2: protocatechuic acid methyl ester; PC3: gallic acid; PC4: quercitrin; PC5: ellagic acid; PC6: β-sitosterol; PC7: methyl gallate; and PC8: caffeic acidBack to article page