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货号: C12460
(49763-96-4)
价格需洽谈
(989-51-5)
价格需洽谈
(53760-19-3)
价格需洽谈
(20350-15-6)
价格需洽谈
(18883-66-4)
价格需洽谈
化合物英文学名 | (-)-epigallocatechin 3-gallate | 化合物中文学名 | (-)-表没食子儿茶素没食子酸酯 |
---|---|---|---|
CAS号 | 989-51-5 | 分子式 | C22H18O11 |
分子量 | 458.372 | 精确质量 | 458.085 |
LogP | 2.2332 | PSA | 197.37 |
外观与性状 | 固体 | 折射率 | -175.5 ° (C=1, EtOH) |
稳定性 | Stable, but may be light sensitive. Incompatible with strong oxidizing agents. | 储存条件 | 2-8ºC |
密度 | 1.9g/cm3 | 熔点 | 222-224°C |
沸点 | 909.1ºC at 760 mmHg | 闪点 | 320ºC |
(-)-Epigallocatechin gallate (EGCG) CAS:989-51-5 (-)-表没食子儿茶素没食子酸酯
Molecular Formula: C22H18O11
Molecular Weight: 458.38
Synonyms: (2R,3R)-2-(3,4,5-Trihydroxyphenyl)-3,4-dihydro-1(2H)-benzopyran-3,5,7-triol 3-(3,4,5-trihydroxybenzoate); (-)-Epigallocatechin gallate; (-)-Epigallocatechin gallate 3-O-gallate
Appearance:White powder
EGCG: >80%,90%,95%,98%
Origin of Extraction: Green tea
Specifications: 80%,90%,95%,98% etc.
Solubility: Easily soluble in water
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.
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.
Safety:
Green tea consumption of as much as 20 cups per day has not been assoiated with any significant side effects. Acute studies reported the oral LD50 of EGCG in mice was 2170mg/kg bw.
Application:
Medicine, Health food, Food, Beverage, Cosmetics and Beverage, etc.
该公司尚未提供产品的MSDS报告,下部信息为摩贝百科数据库为您提供的MSDS信息,供您参考。
提醒该企业完善MSDS信息产品名称 | 纯度 | 规格 | 地区 | 货期 | 公司名称 | 参考 | 操作 |
---|---|---|---|---|---|---|---|
(-)-表没食子儿茶素没食子酸酯 | 99.50% | 25kg | 湖北,天门,黄潭 | 2日 | 湖北万得化工有限公司 | ¥ 1 起 | 查看详情 |
(-)-表没食子儿茶素没食子酸酯 | 99.50% | 25kg | 湖北,天门,黄潭 | 2日 | 湖北巨胜科技有限公司 | ¥ 1 起 | 查看详情 |
(-)-表没食子儿茶素没食子酸酯 | >=98% | 20mg | 湖北,武汉,汉阳 | 1日 | 武汉京标科技有限公司 | ¥ 180 起 | 查看详情 |
(-)-表没食子儿茶素没食子酸酯 | 99.50% | 25kg | 湖北,天门,黄潭 | 2日 | 湖北齐飞医药化工有限公司 | ¥ 1 起 | 查看详情 |
(-)-表没食子儿茶素没食子酸酯 | 98% | 1g | 河南,郑州,二七 | 1日 | 郑州阿尔法化工有限公司 | ¥ 5 起 | 查看详情 |
(-)-表没食子儿茶素没食子酸酯 | 98% | 1g | 中国,河南 | 1日 | 郑州杰克斯化工产品有限公司 | 价格需洽谈 | 查看详情 |
(-)-表没食子儿茶素没食子酸酯 | 99.50% | 25kg | 湖北,天门,黄潭 | 2日 | 天门恒昌化工有限公司 | ¥ 1 起 | 查看详情 |
(-)-表没食子儿茶素没食子酸酯 | 99.50% | 25kg | 湖北,天门,黄潭 | 2日 | 湖北信康医药化工有限公司 | ¥ 1 起 | 查看详情 |
(-)-表没食子儿茶素没食子酸酯 | 99.50% | 25kg | 湖北,天门,黄潭 | 2日 | 湖北实顺生物科技有限公司 | ¥ 1 起 | 查看详情 |
表没食子儿茶素没食子酸酯 | 98% | 20mg、100mg | 四川,成都,温江 | 3日 | 成都普瑞法科技开发有限公司 | 价格需洽谈 | 查看详情 |