Methyl 3,4-dihydroxybenzoate (Protocatechuic acid methyl ester), a key metabolite of antioxidant polyphenols in green tea, exhibits significant antioxidant and anti-inflammatory properties.

4'-Hydroxy-2,4-dimethoxychalcone, a naturally occurring chalcone derivative from the herbal resin of the red geranium [Dragon's Blood], exhibits a wide range of biological activities including anti-malarial, anti-bacterial, anti-fungal, and anti-protozoa properties.