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Merck
CN

03940590

(−)-表儿茶素

primary reference standard

别名:

(-)-顺式-3,3′,4′,5,7-五羟基黄烷, (2R,3R)-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
化学文摘社编号:
490-46-0
分子量:
290.27
Beilstein:
92760
EC 号:
207-710-1
MDL编号:
MFCD00075648
UNSPSC代码:
85151701
PubChem化学物质编号:
329747844
NACRES:
NA.24

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等级

primary reference standard

保质期

limited shelf life, expiry date on the label

制造商/商品名称

HWI

mp

240 °C (dec.) (lit.)

应用

food and beverages

储存温度

−20°C

SMILES字符串

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

InChI

1S/C15H14O6/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/t13-,15-/m1/s1

InChI key

PFTAWBLQPZVEMU-UKRRQHHQSA-N

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相关类别

一般描述

Epicatechin is a potential antioxidant flavonoid, which belongs to the catechin family. It is commonly found in monomeric or/and oligomeric forms in green teas, red wine, cocoa products, and various fruits like grape seeds.
Produced and qualified by HWI pharma services GmbH.
Exact content by quantitative NMR can be found on the certificate.

应用

Reference Standard in the analysis of herbal medicinal products

象形图

Exclamation mark
GHS07

警示用语：

Warning

危险声明

H315,H319,H335

预防措施声明

P261 - 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

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
HWI02311-3
HWI02311-2
HWI02311-1
HWI02311
HWI01708-1

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Major flavonoids in grape seeds and skins: antioxidant capacity of catechin, epicatechin, and gallic acid
Yilmaz Y and Toledo.TR
Journal of Agricultural and Food Chemistry, 52, 255-260 (2004)
Structures of (?)-epicatechin glucuronide identified from plasma and urine after oral ingestion of (?)-epicatechin: differences between human and rat
Natsume M, et al.
Free Radical Biology & Medicine, 34, 840-849 (2003)
Uptake and metabolism of epicatechin and its access to the brain after oral ingestion
Mohsen EA.MM, et al.
Free Radical Biology & Medicine, 33, 1693-1702 (2002)
Min-Hsiung Pan et al.
Food & function, 2(2), 101-110 (2011-07-23)
The consumption of green tea has long been associated with a reduced risk of cancer development. (-)-Epicatechin-3-gallate (ECG) or (-)-epigallocatechin-3-gallate (EGCG) are the major antioxidative polyphenolic compounds of green tea. They have been shown to exert growth-inhibitory potential of various
Rosario Jiménez et al.
Journal of agricultural and food chemistry, 60(36), 8823-8830 (2012-03-24)
Epidemiological studies indicate an inverse relationship between flavanol intake and the risk of cardiovascular disease. Potential mechanisms include their effects on endothelial function and hypertension. A number of studies have shown that flavanol-rich cocoa reduces blood pressure and endothelial dysfunction
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商品

Analysis of Caffeine and Catechins in Green Tea

Validated HPLC method (based on Ph. Eur. Monograph 2668) for quantifying catechins and caffeine in decaffeinated green tea using a Chromolith® High Resolution RP-18e column with advantages in terms of backpressure and matrix robustness.

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