Merck
  • E4018
All Photos(3)

E4018

Sigma-Aldrich

(−)-表儿茶素

≥98% (HPLC), from green tea

Synonym(s):
(-)-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
Empirical Formula (Hill Notation):
C15H14O6
CAS Number:
Molecular Weight:
290.27
Beilstein:
92760
EC 号:
MDL编号:
PubChem化学物质编号:
NACRES:
NA.77

生物来源

green tea

质量水平

测定

≥98% (HPLC)

mp

240 °C (dec.) (lit.)

储存温度

2-8°C

SMILES string

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

Gene Information

Looking for similar products? Visit Product Comparison Guide

Compare Similar Items

View Full Comparison

1 of 4

This Item
PHL891926809703940590
(−)-Epicatechin ≥98% (HPLC), from green tea

Sigma-Aldrich

E4018

(−)-表儿茶素

(−)-Epicatechin phyproof® Reference Substance

PHL89192

(−)-表儿茶素

(−)-Epicatechin analytical standard

Supelco

68097

(−)-表儿茶素

Epicatechin primary reference standard

03940590

(−)-表儿茶素

assay

≥98% (HPLC)

assay

≥98.0% (HPLC)

assay

≥97.0% (HPLC)

assay

-

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

−20°C

Quality Level

200

Quality Level

-

Quality Level

100

Quality Level

-

biological source

green tea

biological source

-

biological source

-

biological source

-

mp

240 °C (dec.) (lit.)

mp

240 °C (dec.) (lit.)

mp

240 °C (dec.) (lit.)

mp

240 °C (dec.) (lit.)

Gene Information

human ... BACE1(23621), CYP1A2(1544)

Gene Information

-

Gene Information

-

Gene Information

-

一般描述

表儿茶素是一种黄烷醇,属于次生、多酚植物代谢物。

应用

(-)-表儿茶素可用作:
  • 检测其对人性别特异性癌症细胞系的生物作用
  • 研究其抗病毒活性
  • 体外分离的 MPO−H2O2−Cl-体系和体外人多形核白细胞(PMN)中研究其再生这种酶活性的能力

生化/生理作用

这种抗氧化剂在巧克力中存在。(-)-表儿茶素可对心血管起作用。因存在于可可种子和可可制品中,故将其视为可靠的标准品。髓过氧化物酶的卤化活性可以通过(-)-表儿茶素进行恢复。

象形图

Exclamation mark

警示用语:

Warning

危险声明

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

个人防护装备

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service