New Journal of Chemistry2019, 43:12538-12547 Acacetin, Formononetin, Maackiain, 5-Hydroxy-7,4'-dimethoxyflavone, 5-Hydroxy-7,3',4'-trimethoxyflavone, Biochanin A, 5-hydroxy-7,3',4'-trimethoxyflavanone and 5-hydroxy-7,3',4',5'-tetramethoxyflavone were purchased from ChemFaces