Tea polyphenol are natural compounds extracted from tea leaves, and contain flavanols, flavanones, flavonols and their glycosides etc Catechin that is one of flavanols among them is the most active component, made up 60%-80% of total amount of polyphenols. Catechins of several single catechins including EGC, DL-C, EC, EGCG, GCG, ECG etc. Catechins with special molecular structure are easy to oxidize, which leads to a good ability to anti-oxidize and eliminate free radicals.

Application: for the synthesis of pharmaceuticals, daily chemicals and food.