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E4268

Sigma-Aldrich

(-)-表没食子儿茶素没食子酸酯

≥80% (HPLC), from green tea

别名:

(-)-顺式-2-(3,4,5-三羟基苯基)-3,4-二氢-1(2H)-苯并吡喃-3,5,7--三醇 3-没食子酸酯, (-)-顺式-3,3′,4′,5,5′,7-六羟基-黄烷-3-没食子酸酯, EGCG

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About This Item

经验公式（希尔记法）:
C22H18O11
CAS号:
989-51-5
分子量:
458.37
MDL號碼:
MFCD00075940
分類程式碼代碼:
12352205
PubChem物質ID:
57654159
NACRES:
NA.79

生物源

green tea

化驗

≥80% (HPLC)

應用

metabolomics
vitamins, nutraceuticals, and natural products

儲存溫度

2-8°C

SMILES 字串

Oc1cc(O)c2C[C@@H](OC(=O)c3cc(O)c(O)c(O)c3)[C@H](Oc2c1)c4cc(O)c(O)c(O)c4

InChI

1S/C22H18O11/c23-10-5-12(24)11-7-18(33-22(31)9-3-15(27)20(30)16(28)4-9)21(32-17(11)6-10)8-1-13(25)19(29)14(26)2-8/h1-6,18,21,23-30H,7H2/t18-,21-/m1/s1

InChI 密鑰

WMBWREPUVVBILR-WIYYLYMNSA-N

基因資訊

human ... CYP1A2(1544)

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相关类别

一般說明

(−)-表没食子儿茶素没食子酸酯是绿茶中的生物活性成分，占儿茶素总量的50-80%。

應用

(−)-表没食子儿茶素没食子酸酯的应用实例：
  • 检测其作为潜在的神经保护剂，对脊髓损伤和血脊髓屏障(BSCB)渗漏的保护作用
  • 作为抗小鼠视网膜光诱导光感受器变性的有效抗氧化剂
  • 作为治疗视网膜色素变性(RP)的抗氧化药物，可减少氧化损伤和改变色素性杂合P23H大鼠的昼夜节律
  • 检测其对限制性心肌病(RCM)小鼠心室舒张功能障碍的逆转作用
  • 小鼠结直肠癌的抗癌剂

生化／生理作用

(−)-表没食子儿茶素没食子酸酯(EGCG)结构中含有8个羟基(OH)，因而决定了它的高抗氧化特性。除了可作为一种有效的游离氧自由基清除剂之外，它还可用作优良的螯合剂和重要转录因子的调节剂，主要是核因子-κβ(NF-kβ)。EGCG已被证明是一种有效的抗肥胖剂，可增强能量消耗和脂肪氧化及减轻人食欲。EGCG也可在缺血和脊髓损伤的初始阶段发挥抗炎和神经保护作用。它可减少小窝蛋白-1表达，维持血脑屏障的完整性和下调促炎细胞因子水平。

象形圖

Exclamation markEnvironment
GHS07,GHS09

訊號詞

Warning

危險分類

Acute Tox. 4 Oral - Aquatic Chronic 2 - Eye Irrit. 2 - Skin Sens. 1

儲存類別代碼

11 - Combustible Solids

水污染物質分類（WGK）

WGK 2

閃點（°F）

Not applicable

閃點（°C）

Not applicable

個人防護裝備

Eyeshields, Gloves, type N95 (US)

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
SLCG1672
SLCF5113
SLCD5237
SLBX0813
SLBW2027

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Tea polyphenols-their antioxidant properties and biological activity-a review
Gramza A, et al.,
Polish Journal of Food and Nutrition Sciences, 14(3), 219-219 (2005)
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Transplant international : official journal of the European Society for Organ Transplantation, 24(5), 514-522 (2011-02-05)
Epigallocatechin-3-gallate (EGCG) shows diverse chemical and biological activities. We investigated the effects of EGCG in a rat renal ischemia reperfusion (I/R) injury model. Sprague-Dawley rats received intraperitoneal injection of 50 mg/kg EGCG 48 h, 24 h, and 30 min prior
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To investigate the effect of epigallocatechin gallate (EGCG) on structural changes of gut microbiota in colorectal carcinogenesis. An azoxymethane (AOM)/dextran sodium sulfate (DSS)-induced colitis mouse model was established. Forty-two female FVB/N mice were randomly divided into the following three groups:
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Green synthesis of silver nanoparticles (AgNPs) has garnered tremendous interest as conventional methods include the use and production of toxic chemicals, products, by-products and reagents. In this regard, the synthesis of AgNPs using green tea (GT) extract and two of
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