Butein, a plant polyphenol, is isolated from Rhus verniciflua. It can inhibit the activation of protein tyrosine kinase, NF-κB and STAT3, and also can inhibit EGFR.

QS-21, an immunostimulatory saponin, is a powerful vaccine adjuvant that stimulates both Th2 humoral and Th1 cell-mediated immune responses by interacting with antigen presenting cells (APCs) and T cells.

ISOTHIAZOLINE 1,1-DIOXIDE is a reactant used in the synthesis of orally bioavailable hebatits B caspid inhibitors, and in the preparation of cryptochrome imhibitors as antidiabetic agents.