Antitumor reagent. Antioxidant. Protects cells from lipid peroxidation and DNA damage induced by reactive free radicals. Inhibits inducible nitric oxide synthase (iNOS; NOS II). Chemopreventive anticancer agent. Induces apoptosis in human cancer cell lines. Inhibits MAP kinase mediated signalling pathways. Inhibits angiogenesis. Inhibits telomerase and DNA methyltransferase. Anti-inflammatory agent. Alternative name: EGCG, (2R,3R)-2-(3,4,5-Trihydroxyphenyl)-3,4-dihydro-1[2H]-benzopyran-3,5,7-triol 3-(3,4,5-trihydroxybenzoate). Formula: C22H18O11. MW: 458.4. MI: 14: 3526. Purity: ≥98% (HPLC). Solubility: Soluble in 100% ethanol, dimethyl formamide or DMSO; slightly soluble in water. Use/Stability: Stock solutions in DMSO are stable for up to 3 months when stored at -20°C. Long Term Storage: +4°C. Handling: Protect from light. Keep under inert gas. After reconstitution, prepare aliquots and store at -20°C.