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重要文件

22110

Sigma-Aldrich

(+)-儿茶素 水合物

≥96.0% (sum of enantiomers, HPLC)

同義詞:

(+)-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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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:
3595244
EC號碼:
MDL號碼:
分類程式碼代碼:
12352103
PubChem物質ID:
NACRES:
NA.22
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化驗

≥96.0% (sum of enantiomers, HPLC)

形狀

powder

光學活性

[α]/D +26±2°, c = 1 in H2O

雜質

≤8% water

mp

175-177 °C (anhydrous) (lit.)

儲存溫度

2-8°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

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。[1]

應用

(+)-儿茶素水合物可用于:
  • 作为盐酸溶液中的钢腐蚀抑制剂。[2]
  • 作为研究类黄酮对大肠杆菌抗菌活性的模型化合物。[3]
  • 作为合成重要儿茶素糖苷的原料。[4]

注意

储存时会丧失结晶水

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

個人防護裝備

dust mask type N95 (US), Eyeshields, Gloves


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分析證明 (COA)

Lot/Batch Number

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存取文件庫

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)
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 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.

文章

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。

條款

在 Ascentis® RP-Amide 上進行類黃酮 HPLC 分析的規程

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

Questions

  1. How to dissolve (+)-catechin hydrate

    1 answer
    1. This product is tested for solubility at 50 mg/mL in hot ethanol.

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