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Merck
CN

C1251

(+)-儿茶素 水合物

≥98% (HPLC), antioxidant, powder

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

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关于此项目

经验公式（希尔记法）:
C15H14O6 · xH2O
化学文摘社编号:
225937-10-0
分子量:
290.27 (anhydrous basis)
NACRES:
NA.77
PubChem Substance ID:
57653982
UNSPSC Code:
12352200
EC Number:
205-825-1
MDL number:
MFCD00150865
Beilstein/REAXYS Number:
3595244

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产品名称

(+)-儿茶素 水合物, ≥98% (HPLC), powder

InChI key

OFUMQWOJBVNKLR-NQQJLSKUSA-N

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

SMILES string

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

assay

≥98% (HPLC)

form

powder

color

yellow to yellow with tan cast

mp

175-177 °C (anhydrous) (lit.)

solubility

ethanol: 50 mg/mL

storage temp.

2-8°C

Quality Level

200

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相关类别

Application

(+)-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

Biochem/physiol Actions

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。

General description

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。

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

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

target_organs

Respiratory system

存储类别

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
WXBF5644V
WXBF2722V
WXBF3693V
WXBF2300V
WXBF0408V

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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
Christine Ziegler et al.
Molecular microbiology, 78(1), 13-34 (2010-10-07)
Increases in the environmental osmolarity are key determinants for the growth of microorganisms. To ensure a physiologically acceptable level of cellular hydration and turgor at high osmolarity, many bacteria accumulate compatible solutes. Osmotically controlled uptake systems allow the scavenging of
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)
Dietary fibre content and antioxidant activity of Manto Negro red grape (Vitis vinifera): pomace and stem
Llobera A and Canellas J
Food Chemistry, 101(2), 659-666 (2007)
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实验方案

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