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Merck
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重要文件

03910590

(±)-儿茶精 水合物

primary reference standard

同義詞:

反式-2-(3,4-二羟苯基)-3,4-二氢-1(2H)-苯并吡喃-3,5,7-三醇, 反式-3,3′,4′,5,7-五羟基黄烷

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About This Item

經驗公式(希爾表示法):
C15H14O6 · xH2O
CAS號碼:
分子量::
290.27 (anhydrous basis)
Beilstein:
92762
EC號碼:
MDL號碼:
分類程式碼代碼:
85151701
PubChem物質ID:
NACRES:
NA.24

等級

primary reference standard

化驗

>90.0%

形狀

powder

儲存期限

limited shelf life, expiry date on the label

製造商/商標名

HWI

應用

food and beverages

儲存溫度

−20°C

SMILES 字串

[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 密鑰

OFUMQWOJBVNKLR-NQQJLSKUSA-N

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一般說明

Catechin hydrate, a flavononol, belongs to the class of flavonoids. It is present in abundance in Siberian larch (Larix sibirica) and in silymarin extract of milk thistle seeds. Its potent chemopreventive action by virtue of the regulation of genes through the ARE-dependent pathway has been widely investigated. It also shows potential antioxidant activity against ovarian cancer cell growth, cellular melanogenesis, human breast cancer, etc.
Produced and qualified by HWI pharma services GmbH.
Exact content by quantitative NMR can be found on the certificate.

應用

Catechin hydrate may be used as a reference standard for the determination of the analyte in walnut leaves by high-performance liquid chromatography (HPLC).

生化/生理作用

多酚抗氧化剂。用于中药。

象形圖

Exclamation mark

訊號詞

Warning

危險聲明

危險分類

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

標靶器官

Respiratory system

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 3

閃點(°F)

Not applicable

閃點(°C)

Not applicable


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分析證明 (COA)

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存取文件庫

HPLC determination of phenolic acids, flavonoids and juglone in walnut leaves
Nour V, et al.
Journal of Chromatographic Science, 51(9) (2013)
T Miyazawa
BioFactors (Oxford, England), 13(1-4), 55-59 (2001-03-10)
Green tea is consumed as a popular beverage in Japan and throughout the world. During the past decade, epidemiological studies have shown that tea catechin intake is associated with lower risk of cardiovascular disease. In vitro biochemical studies have reported
R Hursel et al.
Obesity reviews : an official journal of the International Association for the Study of Obesity, 12(7), e573-e581 (2011-03-04)
Different outcomes of the effect of catechin-caffeine mixtures and caffeine-only supplementation on energy expenditure and fat oxidation have been reported in short-term studies. Therefore, a meta-analysis was conducted to elucidate whether catechin-caffeine mixtures and caffeine-only supplementation indeed increase thermogenesis and
Electrochemical, thermodynamic and adsorption studies of (+)-catechin hydrate as natural mild steel corrosion inhibitor in 1 M HCl
Hussin MH and Kassim MJ
International Journal of Electrochemical Science, 6(5), 1396-1414 (2011)
Stéphane Bastianetto et al.
CNS neuroscience & therapeutics, 15(1), 76-83 (2009-02-21)
Various studies have reported on the neuroprotective effects of polyphenols, widely present in food, beverages, and natural products. For example, we have shown that resveratrol, a polyphenol enriched in red wine and other foods such as peanuts, protects hippocampal cells

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