中文同义词:
(-)-表没食子儿茶素;表没食子儿茶素;表没食子儿茶素 (EGC);(-)-表没食子酸儿茶素;绿茶儿茶酚;EGC,绿茶儿茶酚;(-)-CIS-2-(3,4,5-三羟基苯基)-3,4-二氢-1(2H)-苯并吡喃-3,5,7-三醇;表没食子儿茶素(EGC,绿茶儿茶酚,(-)-表没食子儿茶素,(-)-表没食子酸儿茶素,(EGC) 表没食子酸儿茶素,L-表没食子儿茶精)
英文名称:
(-)-Epigallocatechin
英文同义词:
(-)-epigallocatechol;3,3’,4’,5,5’,7-flavanhexol;5,7-triol,3,4-dihydro-2-(3,4,5-trihydroxyphenyl)-2h-1-benzopyran-(2r-cis;antiscurvyfactorc(sub2);epigallocatechol;EPIGALLOCATECHIN, (-)- SNAP-N-SHOOT 0.1mg/mL(P);professional supplier Epigallocatechin 970-74-1;(-)-EGC, ≥98%(HPLC)
相关类别:
标准品-对照品;对照品;食品和饮料标准品;植物生化提取物;小分子抑制剂;小分子抑制剂,天然产物;表儿茶素没食子酸酯 ECG;植提;植物提取物;中药对照品;标准品;Pharmaceutical Raw Materials;Catechins Tannins;Aromatics;Heterocycles;Inhibitors;对照品,标准品;分析标准品;chemical reagent;pharmaceutical intermediate;phytochemical;reference standards from Chinese medicinal herbs (TCM).;standardized herbal extract;原料;标准品-中药标准品;黄酮;标准品 -中药标准品;分析试剂-标准品;化工原料
比旋光度
-50 º (c=0.04, EtOH)
沸点
685.6±55.0 °C(Predicted)
密度
1.695±0.06 g/cm3(Predicted)
酸度系数(pKa)
9.02±0.15(Predicted)
最大波长(λmax)
278nm(MeOH)(lit.)
稳定性
Stable. Incompatible with strong oxidizing agents.
InChIKey
XMOCLSLCDHWDHP-IUODEOHRSA-N
CAS 数据库
970-74-1(CAS DataBase Reference)
用途
(-)-表没食子儿茶素用于分析含量鉴定/测定,药理活性筛选;
绿茶提取物
表没食子儿茶素本是一种多酚化合物,天然存在于山茶科植物茶的干叶中,是绿茶提取物中生理活性物质的主体。
表没食子儿茶素具有如下生理作用:
1,表没食子儿茶素具有抗氧化作用,能够保护生物膜免受自由基诱导的氧化性损伤。
2,表没食子儿茶素具有降血脂作用,能预防动脉粥样硬化和心血管疾病等多种生物学功能,甚至认为比维生素E强。
3,表没食子儿茶素具有抗癌活性,活性比表没食子儿茶素没食子酸酯略低。
生物活性
(-)-Epigallocatechin (Epigallocatechin) 是绿茶中最丰富的类黄酮,能结合未折叠多肽和防止转化为淀粉样纤维。
体外研究
(-)-Epigallocatechin (EGC) is a potent inhibitor of amyloidogenic cystatin I66Q amyloid fibril formation in vitro. Computational analysis suggests that (-)-Epigallocatechin prevents amyloidogenic cystatin fibril formation by stabilizing the molecule in its native-like state as opposed to redirecting aggregation to disordered, amorphous aggregates [1]. Combined curcumin and EGCG treatment reduced the cancer stem-like Cluster of differentiation 44 (CD44)-positive cell population. Western blot and immunoprecipitation analyses revealed that curcumin and (-)-Epigallocatechin (EGC) specifically inhibited STAT3 phosphorylation and STAT3-NFkB interaction was retained [2]. (-)-Epigallocatechin (EGC) exhibits a MIC and MBC of 5 μg/mL and 20 μg/mL respectively and effectively eradicated E. faecalis biofilms. (-)-Epigallocatechin induces the formation of hydroxyl radicals in E. faecalis. The addition of DIP protected E. faecalis against EGCG-mediated antibacterial effects. At sub-MIC, (-)-Epigallocatechin induces significant down-regulation of E. faecalis virulence genes [3].
用途
用于含量测定/鉴定/药理实验等。
药理药效:具有很好的抗氧化活性,今年研究该化合物也具有一定的抗肿瘤活性。
用途
绿茶多酚。抗癌剂。抗氧化活性低于 EGCG。