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文件

C1251

(+)-儿茶素水合物

Name: (+)-儿茶素 水合物
Brand: SIGMA

≥98% (HPLC), powder

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别名:

(+)-儿茶精-3, (2R,3S)-2-(3,4-二羟基苯基)-3,4-二氢-1(2H)-苯并吡喃-3,5,7-三醇

经验公式（希尔记法）:

C₁₅H₁₄O₆ · xH₂O

CAS号:

225937-10-0

分子量:

290.27 (anhydrous basis)

Beilstein:

3595244

EC 号:

205-825-1

MDL编号:

MFCD00150865

PubChem化学物质编号:

57653982

检测方案

≥98% (HPLC)

形式

powder

颜色

yellow to yellow with tan cast

mp

175-177 °C (anhydrous) (lit.)

溶解性

ethanol: 50 mg/mL

储存温度

2-8°C

SMILES字符串

[H]O[H].O[C@H]1Cc2c(O)cc(O)cc2O[C@@H]1c3ccc(O)c(O)c3

InChI

1S/C15H14O6.H2O/c16-8-4-11(18)9-6-13(20)15(21-14(9)5-8)7-1-2-10(17)12(19)3-7;/h1-5,13,15-20H,6H2;1H2/t13-,15+;/m0./s1

InChI key

OFUMQWOJBVNKLR-NQQJLSKUSA-N

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一般描述

儿茶素是植物化学物质，在黑葡萄、桃子、草莓和蚕豆中含量丰富。儿茶素有各种形式，如儿茶素、表儿茶素、表儿茶素没食子酸酯、表焙儿茶素和表没食子儿茶素没食子酸酯。

应用

(+)-水合儿茶素已用于以下情形：

作为多酚标准品，测定红葡萄酒副产物中的多酚总量
作为添加剂，通过三重进料批量方法研究对体外甲烷生产和底物降解的效果
作为底物，测定L. plantarum CECT 748T 14重组鞣酸酶对儿茶素的活性

生化/生理作用

一种植物来源的抗氧化性黄酮类化合物；自由基清除剂，可在各种生物系统中防止自由基介导的损伤。例如，在生理pH条件下，儿茶素可抑制羟基自由基介导的DNA链断裂。它还可以防止人体血浆氧化。它延迟了内源性脂溶性抗氧化剂的消耗并抑制脂质氧化。儿茶素还可以作为脂肪酸合酶的抑制剂。

象形图

GHS07

警示用语：

Warning

危险声明

H315 - H319 - H335

预防措施声明

P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338

危险分类

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

靶器官

Respiratory system

储存分类代码

11 - Combustible Solids

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

dust mask type N95 (US), Eyeshields, Gloves

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示例

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A comparison of scavenging abilities of antioxidants against hydroxyl radicals.

J Ueda et al.

Archives of biochemistry and biophysics, 333(2), 377-384 (1996-09-15)

The reactivities of various antioxidative compounds including catechol derivatives and endogenous radical scavengers toward hydroxyl radical (.OH) were investigated by an electron spin resonance-spin trapping method, thiobarbituric acid method, and DNA strand scission assay. Hydroxyl radical was generated by both

Ana María García-Bores et al.

Saudi journal of biological sciences, 27(11), 3113-3124 (2020-10-27)

Verbesina crocata (Cav.) Less. (Arnica or Capitaneja) is an endemic plant from Mexico restricted to the western part of the country. The aerial parts are used in traditional medicine for the treatment of wounds and burns. The objective of this

Improved oral bioavailability of the anticancer drug catechin using chitosomes: Design, in-vitro appraisal and in-vivo studies.

Hadeer M Ezzat et al.

International journal of pharmaceutics, 565, 488-498 (2019-05-18)

Catechin hydrate is a phytopharmaceutical with promising anticancer effects but poor bioavailability. This study aimed to elaborate catechin loaded chitosan-tethered liposomes (chitosomes) to enhance catechin oral bioavailability. Nanocarriers were optimized via ethanol injection method followed by physicochemical, ex vivo and

(+)-Catechin prevents human plasma oxidation.

S B Lotito et al.

Free radical biology & medicine, 24(3), 435-441 (1998-01-23)

Based on the recognized capacity of (+)-catechin (CTCH) to prevent free radical-mediated damage in different biological systems, its role in the protection of human plasma from oxidation was investigated. Samples of human blood plasma were incubated with 50 mM AAPH

Nutrition and Health Info Sheet: Catechins (2008)

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文件

(+)-儿茶素 水合物