EGCG-4″-sulfate, a predominant polyphenol in green tea, demonstrates notable anticancer, antioxidant, and anti-inflammatory effects, particularly against colorectal cancer, myeloid leukemia, and thyroid carcinoma [1] [2] [3] [4]. This compound not only inhibits cell proliferation and triggers cell apoptosis but also suppresses the activity of glutamate dehydrogenase 1/2 (GDH1/2, GLUD1/2), highlighting its important role in cancer prevention and treatment.

EGCG Octaacetate, a prodrug of EGCG, is utilized to enhance the stability and bioavailability of EGCG in vivo. It has high efficacy, bioavailability, anti-oxidation, and anti-angiogenesis capacities.

(-)-Epigallocatechin-3-(3''-O-methyl) gallate ((-)-EGCG-3''-O-ME) is a natural product isolated from tea leaves with strong antioxidant, cytotoxic and antibacterial activity, which enhances the adhesive stability of etching rinsing adhesives to dentin.

(-)-Epigallocatechin Gallate (EGCG) is an antioxidant polyphenol flavonoid that inhibits telomerase and DNA methyltransferase. (-)-Epigallocatechin Gallate (EGCG) blocks the activation of EGF receptors and HER-2 receptors. (-)-Epigallocatechin Gallate (EGCG) is a phenolic antioxidant found in a number of plants such as green and black tea. It inhibits cellular oxidation and prevents free radical damage to cells.

Proteasome inhibitor IX (PS-IX) is an inhibitor of chymotrypsin-like activity of the 20S proteasome (IC50 ~1 μM). Proteasome inhibitor IX shows potent anticancer activity. Proteasome inhibitor IX exhibits HCT116 p53+/+ cells growth inhibitory activity(IC50 = 1.49 μM).

3-O-(E)-p-coumaroyl tormentic acid may be promising lead compound for developing an effective drug for treatment of leukemia, it induces apoptotic cell death in human leukemia (HL60) via mainly mitochondrial pathway by, at least in part, Topo I inhibition. 3-O-trans-p-coumaroyltormentic acid shows cytotoxicity against four human tumor cell lines (A549, SK-OV-3, SK-MEL-2, and HCT-15) in vitro, the IC50 values of 13.72, 14.29,14.61, 14.04 uM, respectively. 3beta-O-cis-p-Coumaroyltormentic acid, and 3beta-O-trans-p-coumaroyltormentic acid are weakly selective for vancomycin-resistant Enterococcus (VRE) compared with eukaryotic cells, with an MIC of 59.4microg/mL and a 50% inhibitory concentration (IC50) of 72.0microg/mL for monkey kidney epithelial (MA104) cells. A mixture of 3-O-cis-p-coumaroyltormentic acid and 3-O-trans-p-coumaroyltormentic acid shows an inhibitory effect comparable to (-)-epigallocatechin gallate (EGCG) of green tea on the activation of Epstein-Barr virus early antigen (EBV-EA) induced by 12-O-tetradeca--noylphorbol-13-acetate (TPA).

MST-312 (Telomerase Inhibitor IX) is a derivative of green tea epigallocatechin gallate (EGCG). MST-312 is a telomerase inhibitor. MST-312 has research value in cancer, such as multiple myeloma (MM).

Delphinidin-3-O-galactoside chloride has anti-obesity and hypolipidemic effects. Delphinidin-3-O-galactoside (D3G) is a water-soluble anthocyanin with antioxidant activity. D3G is capable of masking the EGCG-induced cytotoxicity and ER stress, presumably