Our product, EGCG is a kind of component extracted from Chinese green tea. It is the primary active and water-soluble component of green tea, which has the highest content among the the tea catechins. It accounts for 9-13% of green tea in net weight. By virtue of its peculiar stereochemical structure, EGCG possesses much stronger anti-oxidant activities and plays an important role in preventing cancer and cardiovascular diseases. In addition, it is potent as the reversal agent of MDR (Multidrug Resistance). As such, it may improve the sensitivity of cancer cells to chemotherapy drugs and reduce toxicity on the heart.


Specification Other items* Color Application
EGCG 99% /EGCG 99% min. Off-white Medicine, Analysis
EGCG 95% /EGCG 95% min. Off-white Medicine, Health food、Cosmetics
EGCG 90% /EGCG 90% min. Off-white Medicine, Health food、Cosmetics
EGCG 80% /EGCG 80% min. Off-white Medicine, Health food、Cosmetics
EGCG 60% Tea Polyphenol 99% min, Tea Catechins 80% min Light Brown Health food、Cosmetics, Food
EGCG 50% Tea Polyphenol 99% min, Tea Catechins 80% min Light Brown Health food、Food, Beverage
EGCG 40% Tea Polyphenol 90% min, Tea Catechins 70% min Light brown Health food、Food, Beverage

*Caffeine is according to customer requirement

Product Information

CAS Number: 989-51-5
Synonym: (2R, 3R)-2-(3,4,5-Trihydroxy-phenyl)-3,4-dihydro-1(2H)-benzopyran-3,5,7-triol 3-(3,4, 5-trihydroxybenzoate),(-)-Epigallocatechin gallate, (-)-Epigallocatechin gallate 3-O-gallate
Molecular Structure:
Molecular Formula: C22H18O11
Molecular Weight: 458.4
Solubility: Clear colorless solution at 5Mg/Ml in water.
Packing: 1kg/Al drum, with the inner plastic bag ; 25kg/drum
Storage: Store in a cool and dry area, keep sealed and keep away from direct light

Biological effects

(-)-Epigallocatechin gallate (egcg), an most potent antioxidant polyphenols of green tea, is associated with antioxidant, antitumor and antimutagenic activities. The antioxidant activity is at lest 100 times effective than vitamin C and 25 timeseffective than vitamin E at protecting cells and DNA from damage which are believed to be linked to cancer, heart disease and other potentially fatal illnesses. The biological benefits of EGCG are generally attributed to their antioxidant activity to scavenge free radical oxygen.

EGCG is the major component of the polyphenolic fraction of green tea. It makes up about 10-50% of the total green tea catechins includeing epigallocatechin gallate (EGCG), epigallocatechin (EGC), epicatechin gallate(ECG), epicatechin(EC), gallocatechin gallate (GCG), catechin are major catechin of green tea catechin. The antioxidant activity increased in the following order: EC<ECG<EGC<EGCG.

Many studies indicate EGCG plays a role, which protects aganist free-radical DNA damage, protects aganist the effects of ionizing radiation and ultraviolet radiation, ;inhibits lipid peroxidation, decreases serum cholesterol levels, LDL, VLDL and triglycerides, interferes with the binding of cancer-causing agents to cellular DNA, helps to neutralize dietary carcinogens, works with enzymes and other antioxidants in the intestine, liver and lungs to prevent the activation of certain carcinogens before they damage DNA. As a free radicals scavenger, EGCG combats the effects of pollution, sunlight and smoking, helps skin from wrinkling and aging.