Baicalein, a flavonoid monomer compound isolated from the dried roots of the traditional Chinese medicinal herb Scutellaria baicalensis, serves as the primary pharmacological material basis of the herb.
Sal B is a water-soluble component extracted from Danshen (Salvia miltiorrhiza). It is a phenolic acid compound formed by the condensation of 3 molecules of danshensu and 1 molecule of caffeic acid.