A new lipophilic flavonol, 6-hydroxykaempferol 3,7,4'-trimethyl ether, called tanetin, has been characterized in the leaf, flower and seed of feverfew, Tanacetum parthenium. It co-occurs with the known 6-hydroxykaempferol 3,7-dimethyl ether, quercetagetin 3,7-dimethyl ether and quercetagetin
Radix scutellariae is a well-known traditional Chinese medicine used for the treatments of inflammation, pyrexia, hepatitis, etc. Flavonoids are its main active compounds. The aim of this study is to develop and validate the ultra high-performance liquid chromatography (UHPLC) method for