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C1251

Sigma-Aldrich

(+)-儿茶素 水合物

≥98% (HPLC), 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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About This Item

经验公式（希尔记法）:
C15H14O6 · xH2O
CAS号:
225937-10-0
分子量:
290.27 (anhydrous basis)
Beilstein:
3595244
EC號碼:
205-825-1
MDL號碼:
MFCD00150865
分類程式碼代碼:
12352200
PubChem物質ID:
57653982
NACRES:
NA.77

品質等級

200

化驗

≥98% (HPLC)

形狀

powder

顏色

yellow to yellow with tan cast

mp

175-177 °C (anhydrous) (lit.)

溶解度

ethanol: 50 mg/mL

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。

應用

(+)-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

生化／生理作用

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。

象形圖

Exclamation mark
GHS07

訊號詞

Warning

危險聲明

H315,H319,H335

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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Ni Zhang et al.
Food chemistry, 237, 811-817 (2017-08-03)
Phenolics contents in wine grapes are key indicators for assessing ripeness. Near-infrared hyperspectral images during ripening have been explored to achieve an effective method for predicting phenolics contents. Principal component regression (PCR), partial least squares regression (PLSR) and support vector
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)
Nutrition and Health Info Sheet: Catechins (2008)
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
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