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Merck
CN

22110

(+)-儿茶素 水合物

≥96.0% (sum of enantiomers, HPLC)

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:
分子量:
290.27 (anhydrous basis)
UNSPSC Code:
12352103
NACRES:
NA.22
PubChem Substance ID:
EC Number:
205-825-1
Beilstein/REAXYS Number:
3595244
MDL number:
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产品名称

(+)-儿茶素 水合物, ≥96.0% (sum of enantiomers, HPLC)

SMILES string

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

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

assay

≥96.0% (sum of enantiomers, HPLC)

form

powder

optical activity

[α]/D +26±2°, c = 1 in H2O

impurities

≤8% water

mp

175-177 °C (anhydrous) (lit.)

storage temp.

2-8°C

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Application

(+)-儿茶素水合物可用于:
  • 作为盐酸溶液中的钢腐蚀抑制剂。
  • 作为研究类黄酮对大肠杆菌抗菌活性的模型化合物。
  • 作为合成重要儿茶素糖苷的原料。

Disclaimer

储存时会丧失结晶水

General description

儿茶素水合物是一种具有抗氧化性能的多酚类黄酮。它常见于绿茶、葡萄籽和很少几种树木(如金合欢和桃花心木)的树皮中。

pictograms

Exclamation mark

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

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访问文档库

Antimicrobial mechanism of flavonoids against Escherichia coli ATCC 25922 by model membrane study
He M, et al.
Applied Surface Science, 305(5), 515-521 (2014)
Catechin hydrate inhibits proliferation and mediates apoptosis of SiHa human cervical cancer cells
Al-Hazzani AA and Alshatwi AA
Food And Chemical Toxicology, 49(12), 3281-3286 (2011)
Catechin glucosides: occurrence, synthesis, and stability
Raab T, et al.
Journal of Agricultural and Food Chemistry, 58(4), 2138-2149 (2010)
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)
M J Reis Lima et al.
Talanta, 68(2), 207-213 (2008-10-31)
A sequential injection system based on the ABTS (2,2'-azino-bis-(3-ethylbenzothiazoline-6-sulphonic-acid) methodology was developed. The proposed method, incorporating a mixing chamber in the side port of the selection valve, was evaluated to measure the total antioxidant activity of several beverages and foods.

商品

Antioxidants protect biological systems from oxidative damage produced by oxygen-containing free radicals and from redoxactive transition metal ions such as iron, copper, and cadmium.

抗氧化剂可保护生物系统免受含氧自由基和氧化还原过渡金属离子(如铁、铜和镉)引起的氧化损伤。

实验方案

Protocol for HPLC Analysis of Flavonoids on Ascentis® RP-Amide

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