Active ingredients of the Tea Polyphenol Tea polyphenols Biological activity Toxicity Biosynthesis pathway of Epicatechin gallate Antibacterial effect Anti-oxidization effect Other pharmacological effects Storage
ChemicalBook > CAS DataBase List > (-)-Epicatechin gallate

(-)-Epicatechin gallate

Active ingredients of the Tea Polyphenol Tea polyphenols Biological activity Toxicity Biosynthesis pathway of Epicatechin gallate Antibacterial effect Anti-oxidization effect Other pharmacological effects Storage
Product Name
(-)-Epicatechin gallate
CAS No.
1257-08-5
Chemical Name
(-)-Epicatechin gallate
Synonyms
L-ECG;(-)-ECG;Nsc636594;Teatannin;Aids000675;Aids-000675;ECG)()-Epicatechin;epicatechol,gallate;3-O-Galloylgatechin;Cathechin 3-gallate
CBNumber
CB0738543
Molecular Formula
C22H18O10
Formula Weight
442.37
MOL File
1257-08-5.mol
More
Less

(-)-Epicatechin gallate Property

Melting point:
257-258°C
alpha 
-182～-194°(D/20℃)(c=0.2,CH3OH)
Boiling point:
861.7±65.0 °C(Predicted)
Density 
1.80±0.1 g/cm3(Predicted)
storage temp. 
2-8°C
solubility 
Acetone (Sparingly), DMSO (Slightly), Methanol (Slightly)
form 
Solid
pka
7.75±0.25(Predicted)
color 
White to Off-White
Water Solubility 
Soluble in water, acetone, DMSO, methanol.
Stability:
Light Sensitive
InChIKey
LSHVYAFMTMFKBA-TZIWHRDSSA-N
LogP
2.670 (est)
CAS DataBase Reference
1257-08-5(CAS DataBase Reference)
More
Less

Safety

Safety Statements 
24/25
WGK Germany 
3
RTECS 
DH9030000
F 
10-23
HS Code 
29329990
More
Less

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

More
Less

N-Bromosuccinimide Price

Sigma-Aldrich
Product number
E3893
Product name
(?)-Epicatechin gallate
Purity
≥98% (HPLC), from green tea
Packaging
10mg
Price
$256
Updated
2024/03/01
Sigma-Aldrich
Product number
03950590
Product name
Epicatechin gallate
Purity
primary reference standard
Packaging
10mg
Price
$588
Updated
2024/03/01
TCI Chemical
Product number
E0890
Product name
(-)-Epicatechin Gallate
Purity
>98.0%(HPLC)
Packaging
20mg
Price
$259
Updated
2024/03/01
TCI Chemical
Product number
E0890
Product name
(-)-Epicatechin Gallate
Purity
>98.0%(HPLC)
Packaging
100mg
Price
$650
Updated
2024/03/01
Alfa Aesar
Product number
J60814
Product name
(-)-Epicatechin gallate
Packaging
10mg
Price
$203
Updated
2024/03/01
More
Less

(-)-Epicatechin gallate Chemical Properties,Usage,Production

Active ingredients of the Tea Polyphenol

Epicatechin gallate briefly referred to as EGCG, being the ester formed by epigallocatechin and gallate acid, belonging to a kind of tea polyphenols; is a kind of flavonoids, D-form ester catechins.
Epicatechin gallate is the cathchin monomer isolated from the tea, being the major active ingredients of polyphenols.

Figure 1 shows the stereochemical structure of epicatechin gallate

Tea polyphenols

Tea polyphenols are the general term of the tea polyphenols, being a kind of polyphenols using catechins as the major body with biological oxidation effect. Chinese tea usually contains 20% to 30% tea polyphenols. Tea polyphenols can be divided into five categories, of which the flavanol (mainly catechins) is the most important; besides there are also anthocyanins, flavonoids, flavonols and phenolic acids. Catechins account for about 50% to 70% of the total amount of tea polyphenols, accounting for 12% to 24% of the dry weight of tea. It is a compound of complex structure, including four kinds of simple catechins (also called non-esters type catechins) and two kinds of complex catechins (also known as ester type catechins). The trend of the content of tea polyphenols is generally as below: green tea is higher than black tea; summer and autumn tea are more than spring tea. The main pharmacological effects of tea polyphenols are:
(1) Lower the blood lipid, inhibit atherosclerosis. (2) Enhance the capillaries, lower blood sugar. (3) Anti-radiation. (4) Anti-aging. (5) Anti-cancer and anti-mutation. (6) Bactericidal effect.

Figure 2 is the tea polyphenols containing the major chemical substances

Biological activity

Oral biological activity is poor; the efficacy of taking a dosage of 800 mg is actually an order of magnitude lower than the real situation.

Toxicity

EGCG might be carcinogenic; study has found that during pregnancy, intake of polyphenols will increase the risk of neonatal leukemia; it is not good for pregnant women to uptake bioflavones; during pregnancy, administration of tea or coffee during pregnancy may increase the risk for children of suffering from malignant tumor of central nervous system (CNS), and the specific mechanism remains unknown.

Biosynthesis pathway of Epicatechin gallate



Figure 3 shows the synthesis of Epicatechin gallate in plants.
Enzymes involved in the synthesis pathway include phenylalanine ammonialyase (PAL), cinnamate 4-hydroxylase (C4H), 4-¬coumaroyl¬CoA ligase (4CL), chalcone isomerase (CHI), chalcone synthase (CHS), flavonoid3’¬hydroxylase (F3’H),flavonoid3’, 5’¬hydroxylase (F3’5’H), (2S)¬flavanone 3¬hydroxylase (F3H), dihydroflavonol-4-¬reductase (DFR), leucoanthocyanidin reductase (LAR), anthocyanidin reductase，ANR、anthocyanidin synthase (ANS) and UDPG¬ flavonoid glucosyl transferase UFGT and so on.

Antibacterial effect

Epicatechin gallate has antibacterial effect, having varied bacteriostatic and bactericidal effect against many kinds of common pathogens including Proteus, Staphylococcus aureus, Staphylococcus epidermidis; Streptococcus, Botox, Lactobacillus and Vibrio cholera, especially intestinal pathogens. Moreover, epicatechin gallate can also effectively prevent the infection of antibiotic-resistant staphylococcus; it has inhibitory effect against hemolysin ECG and EGCG. In addition, it also has inhibitory effect against pathogenic fungi that can cause human skin disease, such as the head tinea alba, plaque blister white ringworm, sweat bubble white ringworm and stubborn tinea and other parasitic fungi.

Anti-oxidization effect

Epicatechin gallate belongs to a polyphenol hydroxyl chemical, and is quite easily to be oxidized into esters and provide proton H, thus having significant antioxidant property. The antioxidant capacity of tea polyphenols is 18 times than that of vitamin E; 3 to 10 times than that of vitamin C. It has the ability to block the synthesis of N-nitroso compounds, inhibit the activity of lipoxygenase and lipid peroxidation. This makes it play excellent disease prevention and treatment effect in the anti-cancer, anti-mutation, anti-aging, prevention and treatment of cardiovascular disease, treatment of hepatitis and many other aspects.

Other pharmacological effects

  • Hypoglycemic effect, a number of experimental data have confirmed that tea polyphenols is an invertase inhibitor, so it can inhibit the conversion of sucrose to glucose, leading to the decrease of the blood sugar.
  • Antiviral effect, it has inhibitory effect against influenza A, influenza B virus as well as the human respiratory system covariate virus (RSV). In addition, tea polyphenols also have a strong anti-inhibitoryeffect against gastroenteritis virus, hepatitis A virus and plant viruses. In recent years, it has been confirmed that tea polyphenol is a strong novel inhibitor of HIV-IRT.
  • Anti-cancer, anti-mutation effect; epicatechin gallate not only inhibits a variety of chemical carcinogen-induced mutations, but also inhibit the mutagenic effect of some kinds of mixed carcinogens (tobacco fog thickener, coal tar, smoked fish extract, X Ray).
  • For the treatment of cardiovascular disease; studies have shown that tea polyphenols have various effects including anticoagulant, promote fibrinolysis, anti-platelet aggregation, lowering blood pressure, lowering blood pressure, prevention and treatment of atherosclerosis as well as protecting the myocardium.
  • Anti-allergic and anti-inflammatory effect, tea polyphenols has a significant inhibitory effect on the transparent enzyme, among which theaflavin gallate has an inhibitory activity of 99.1%, being able to effectively inhibit the rapid allergic reaction.
  • Gastrointestinal protection function. It can inhibit the H-K-ATPase in the gastric mucosa, which fundamentally inhibits the secretion of gastric acid. This reduces the gastric irritation and injury by gastric acid. It can treat ulcers and alleviate the gastrointestinal spasm as well.

Storage

It should be sealed, placed in a cool dry environment, to be avoided of moisture, light and high temperature.

Chemical Properties

White powder

Uses

One of the catechin isomers and a potent antioxidant that can modulate a wide range of membrane proteins. Its bilayer-modifying potency was tested using gramicidin A (gA) channels as probes. All the c atechins alter gA channel function and modify bilayer properties, with a 500-fold range in potency. The gallate group causes current block, as evident by brief downward current transitions.

Uses

(-)-Epicatechin gallate is polyphenols which are abundant in green and black teas. (-)-Epicatechin gallate (ECG) is a natural catechin with a single galloyl group. The hydroxyl groups of ECG contribute to its potent antioxidant activity and facilitate the killing of methicillin-resistant strains of S. aureus.

Uses

An antioxidant investigated as an adjunct treatment of some methyicillin resistant bacteria.

Definition

ChEBI: A gallate ester obtained by formal condensation of the carboxy group of gallic acid with the (3R)-hydroxy group of epicatechin. A natural product found in Parapiptadenia rigida.

General Description

(?)-Epicatechin gallate is one of the major polyphenols present in green tea. It belongs to the catechin gallates group of organic compounds. ECG has a chemical structure like that of (?)-epigallocatechin gallate (EGCG), the other major polyphenol found in green tea.

Biological Activity

(-)-epicatechin gallate is a major catechin component in green tea [1].(-)-epicatechin gallate (ecg) plays an important role in cell growth inhibition, apoptosis and membrane transport system [1].(-)-epicatechin gallate is a kind of catechin. in hct-116 cells, ecg activated transcription factor 3 (atf3), which played a critical role in pro-apoptosis. egr-1 was involved in ecg-induced atf3 expression. in hct-116 cells, ecg (50 μm) increased nag-1 and atf3 expression in time- and dose-dependent way [1]. in carcinoma hsc-2 cells, ecg (50 μm) exhibited cytotoxicity with midpoint cytotoxicity (nr50) value of 67 μm. however, in normal hgf-2 fibroblasts, ecg exhibited cytotoxicity at concentrations up to 25 μm with nr50 value of 100 μm. in carcinoma hsc-2 cells, ecg (250 μm) induced nucleosomal dna fragmentation and apoptosis. ecg (150 μm) significantly increased caspase-3 activity [2].in rats, there were five metabolites of ecg: (-)-epicatechin gallate, 3’,4’’-di-o-methyl-(-)-epicatechin gallate, 4’’-o-methyl-(-)-epicatechin gallate, 4’-o-methyl-(-)-epicatechin gallate and 3’-o-methyl-(-)-epicatechin gallate, which were excreted in rat urine [3].

Biochem/physiol Actions

(?)-Epicatechin gallate (ECG), a potent free-radical scavenger has an inhibitory effect on collagenase and elastase enzymes making it an anti-aging agent. It displays antiproliferative effects on human colorectal cells and hence is a chemo-preventative agent. It influences cell survival, preventing apoptosis or autophagy by promoting cell proliferation in oxygen-glucose deprived human brain microvascular endothelial cells. Being structurally and functionally similar to EGCG, ECG might be involved in balancing the mammalian target of rapamycin (mTOR)-AMP-activated protein kinase (AMPK) pathways in endoplasmic reticulum stress. It prevents cell death in this scenario by showing resistance against oxygen-deprived cells. ECG may contribute in preventing oxidative stress. It effectively inhibits secretory sphingomyelinase in many disease states and provides protection for human spermatozoa in Assisted reproductive technology (ART).

References

[1]. cho kn, sukhthankar m, lee sh, et al. green tea catechin (-)-epicatechin gallate induces tumour suppressor protein atf3 via egr-1 activation. eur j cancer, 2007, 43(16): 2404-2412.
[2]. babich h, krupka me, nissim ha, et al. differential in vitro cytotoxicity of (-)-epicatechin gallate (ecg) to cancer and normal cells from the human oral cavity. toxicol in vitro, 2005, 19(2): 231-242.
[3]. kohri t, suzuki m, nanjo f. identification of metabolites of (-)-epicatechin gallate and their metabolic fate in the rat. j agric food chem, 2003, 51(18): 5561-5566.

(-)-Epicatechin gallate Preparation Products And Raw materials

Raw materials

Preparation Products

More
Less

(-)-Epicatechin gallate Suppliers

Americas 1 Canada 1 China 321 Europe 2 France 2 Germany 6 India 4 Japan 6 South Korea 1 Switzerland 2 United Kingdom 10 United States 40 Global 396
Nanjing Duolong Bio-tech Co.,Ltd.
Tel
18905173768
Fax
025-83263139
Email
sales@dolonchem.com
Country
China
ProdList
2331
Advantage
50
ShangHai YuanYe Biotechnology Co., Ltd.
Tel
021-61312847 13636370518
Fax
021-55068248
Email
shyysw007@163.com
Country
China
ProdList
4940
Advantage
60
Nanjing Yuanzhi Biotechnology Co. Ltd.
Tel
15805159960
Email
1211550495@qq.com
Country
China
ProdList
1795
Advantage
58
Shaanxi Pioneer Biotech Co., Ltd.
Tel
029-029-86629612 18202932191
Email
sales3@pioneerbiotech.com
Country
China
ProdList
270
Advantage
55
J & K SCIENTIFIC LTD.
Tel
010-82848833 400-666-7788
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
96815
Advantage
76
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
021-61259108 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40228
Advantage
62
3B Pharmachem (Wuhan) International Co.,Ltd.
Tel
821-50328103-801 18930552037
Fax
86-21-50328109
Email
3bsc@sina.com
Country
China
ProdList
15839
Advantage
69
Chembest Research Laboratories Limited
Tel
+86-21-20908456
Fax
021-58180499
Email
sales@BioChemBest.com
Country
China
ProdList
6005
Advantage
61
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Fax
021-67121385
Email
Sales-CN@TCIchemicals.com
Country
China
ProdList
24529
Advantage
81
Chemsky（shanghai）International Co.,Ltd.
Tel
021-50135380
Email
shchemsky@sina.com
Country
China
ProdList
32321
Advantage
50
China DongFan Chemical Co.,LTD
Tel
86-0571-85151182
Fax
86-0571-85151182
Country
China
ProdList
5691
Advantage
66
XiaoGan ShenYuan ChemPharm co,ltd
Tel
15527768850
Email
1791901229@qq.com
Country
China
ProdList
8836
Advantage
52
Beijing Isomersyn Technology CO;LTD
Tel
010-82954736 13391601435
Email
sales@isomersyn.com
Country
China
ProdList
3295
Advantage
57
Shandong Xiya Chemical Co., Ltd
Tel
4009903999 13355009207
Fax
0539-6365991
Email
3007715519@qq.com
Country
China
ProdList
18738
Advantage
57
Sichuan Kulinan Technology Co., Ltd
Tel
400-1166-196 18981987031
Fax
028-84555506 800101999
Email
cdhxsj@163.com
Country
China
ProdList
11707
Advantage
57
Hunan Hui Bai Shi Biotechnology Co., Ltd.
Tel
0731-85526065 13308475853
Email
ivy@hnhbsj.com
Country
China
ProdList
4554
Advantage
62
Shenzhen Sungening Bio-Tech Co., Ltd
Tel
+86-0755-89668383
Fax
+86-0755-89594066/4038
Email
sales@sungening.com
Country
China
ProdList
1319
Advantage
65
Dalian Meilun Biotech Co., Ltd.
Tel
0411-62910999 13889544652
Email
meilunui@163.com
Country
China
ProdList
4727
Advantage
58
BioBioPha Co., Ltd.
Tel
0871-65217109 13211707573;
Fax
0871-65215563
Email
y.liu@mail.biobiopha.com
Country
China
ProdList
5653
Advantage
65
Chengdu Ai Keda Chemical Technology Co., Ltd.
Tel
4008-755-333 18080918076
Fax
028-86757656
Email
800078821@qq.com
Country
China
ProdList
9718
Advantage
55
Chengdu Climax Biotech Co., Ltd.
Tel
028-83311324 1278112614
Fax
028-83311324
Email
climaxbiotech@gmail.com
Country
China
ProdList
925
Advantage
58
Shanghai Winherb Medical Technology Co., Ltd.
Tel
400-186-5138 13341702378
Fax
QQ：190129269
Email
winherb@126.com
Country
China
ProdList
1008
Advantage
58
Shanghai civi chemical technology co.,Ltd
Tel
86-21-34053660
Fax
86-21-34053661
Email
sale@labgogo.com
Country
China
ProdList
9865
Advantage
52
Nanjing Spring & Autumn Biological Engineering Co., Ltd.
Tel
025-84430028 13815430202
Email
sale02@cqherb.com
Country
China
ProdList
281
Advantage
59
Beijing HuaMeiHuLiBiological Chemical
Tel
010-56205725
Fax
010-65763397
Email
waley188@sohu.com
Country
China
ProdList
12335
Advantage
58
Haoyuan Chemexpress Co., Ltd.
Tel
021-58950125
Fax
(86) 21-58955996
Email
info@chemexpress.com
Country
China
ProdList
7552
Advantage
61
9ding chemical ( Shanghai) Limited
Tel
4009209199
Fax
86-021-52271987
Email
sales@9dingchem.com
Country
China
ProdList
22514
Advantage
55
Shanghai Aladdin Bio-Chem Technology Co.,LTD
Tel
400-400-6206333 18521732826
Fax
021-50323701
Email
market@aladdin-e.com
Country
China
ProdList
25003
Advantage
65
The future of Shanghai Industrial Co., Ltd.
Tel
021-61552785
Fax
021-55660885
Email
sales@shshiji.com
Country
China
ProdList
9545
Advantage
55
Shanghai Ruji Biology Technology Co., Ltd.
Tel
+86-21-65211385-8001 36031160
Fax
+86-21-65211385-8004
Email
sales@shruji.com
Country
China
ProdList
3224
Advantage
55
Shanghai Tauto Biotech Co., Ltd.
Tel
021-51320588
Fax
0086-21-51320502
Email
tauto@tautobiotech.com
Country
China
ProdList
3989
Advantage
66
Nanjing Dulai Biotechnology Co., Ltd.
Tel
025-84699383-8003 18013301590
Fax
025-84699383-8003
Email
njduly@126.com
Country
China
ProdList
971
Advantage
55
TargetMol Chemicals Inc.
Tel
021-021-33632979 15002134094
Fax
021-33632979
Email
marketing@targetmol.com
Country
China
ProdList
7783
Advantage
58
Shanghai TaoSu Biochemical Technology Co., Ltd.
Tel
021-33632979
Fax
021-34692979
Email
info@tsbiochem.com
Country
China
ProdList
8065
Advantage
58
Cheng Du Pufeide Biotechnology Co., Ltd.
Tel
028-82610909 13388174823
Fax
8171-1798
Email
scglp@glp-china.com
Country
China
ProdList
1064
Advantage
58
Chengdu Herbpurify Co.Ltd.
Tel
18302802153 18981717076
Fax
086-28-85377358
Email
2355253619@qq.com
Country
China
ProdList
1104
Advantage
58
Shanghai BeiZhuo Biotech Co., Ltd.
Tel
021-61119791,13386096464
Fax
021-50190009
Email
bzswkf@foxmail.com
Country
China
ProdList
3921
Advantage
50
Vientiane Tianjin Hengyuan Technology Co., Ltd.
Tel
15722085254
Fax
022-26358246
Email
phytochemical@126.com
Country
China
ProdList
813
Advantage
55
Shanghai Meishui Chemical Technology Co., Ltd
Tel
021-60549325 18616193163
Fax
021-33250306
Country
China
ProdList
4526
Advantage
56
Shanghai JONLN Reagent Co., Ltd.
Tel
400-0066400 13621662912
Fax
021-55660885
Email
422131432@qq.com
Country
China
ProdList
9978
Advantage
55
Bide Pharmatech Ltd.
Tel
400-164-7117 13681763483
Fax
+86-21-61629029
Email
product02@bidepharm.com
Country
China
ProdList
41462
Advantage
60
Sichuan Wei Keqi Biological Technology Co., Ltd.
Tel
028-81700200 18116577057
Fax
028-81705658
Email
3003855609@qq.com
Country
China
ProdList
7887
Advantage
56
Wuxi Zhongkun Biochemical Technology Co., Ltd.
Tel
0510-85629785 18013409632
Fax
051085625359
Email
sales@reading-chemicals.com
Country
China
ProdList
15178
Advantage
58
Finetech Industry Limited
Tel
027-87465837 19945049750
Fax
027-8777-2287
Email
sales@finetechnology-ind.com
Country
China
ProdList
9648
Advantage
58
Shanghai Aspire Biological Technology Co., Ltd.
Tel
021-61317773
Fax
021-61486878
Email
sales@aspirebio.com
Country
China
ProdList
2880
Advantage
58
Shaanxi Pioneer Biotech Co., Ltd.
Tel
13720616393；029-84385017-8003 13720616393
Fax
029-84385017
Email
sales@pioneerbiotech.com
Country
China
ProdList
778
Advantage
56
Shanghai Macklin Biochemical Co.,Ltd.
Tel
15221275939 15221275939
Fax
021-50706099
Email
shenlinxing@macklin.cn
Country
China
ProdList
16166
Advantage
55
Hangzhou J&H Chemical Co., Ltd.
Tel
0571-+86-571-87396432
Fax
0571-87396431
Email
sales@jhechem.com
Country
China
ProdList
11578
Advantage
59
Shanghai Yongye Biotechnology Co., Ltd.
Tel
86-021-61559134 15921386130
Fax
021-55068248
Email
3423497944@qq.com
Country
China
ProdList
8144
Advantage
55
AdooQ Bioscience CHINA
Tel
025-58849295 18951903616;
Fax
025-68650336
Email
info@adooq.cn
Country
China
ProdList
2990
Advantage
60
More
Less

View Lastest Price from (-)-Epicatechin gallate manufacturers

Hebei Zhuanglai Chemical Trading Co Ltd
Product
ECG Epicatechin 1257-08-5
Price
US $79.00-38.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
20ton
Release date
2024-11-22
Changsha Staherb Natural Ingredients Co., Ltd.
Product
(-)-Epicatechin gallate ECG; Green tea extract 1257-08-5
Price
US $0.00/KG
Min. Order
1KG
Purity
98% HPLC
Supply Ability
1000KG
Release date
2022-09-27
Chongqing Zhihe Biopharmaceutical Co., Ltd.
Product
(-)-Epicatechin gallate 1257-08-5
Price
US $0.00-0.00/kg
Min. Order
0.10000000149011612kg
Purity
≥98%
Supply Ability
20tons
Release date
2024-01-04

1257-08-5, (-)-Epicatechin gallateRelated Search:

Methyl gallate (-)-EPICATECHIN Ethyl gallate L-Epicatechin Propyl gallate Gallic acid monohydrate Pyrogallol (-)-Epigallocatechin gallate THEAFLAVIN 3'-GALLATE Theaflavin 3,3′-digallate Tea polyphenol Cianidanol Gallic acid (-)-EGCG-4'-O-ME (-)-EGCG-3''-O-ME (-)-EGCG-3'-O-ME (-)-EPIGALLOCATECHIN 3-(4''-O-METHYL)GALLATE (-)-ECG-3''-O-ME

  • EPICATECHIN GALLATE, (-)- SNAP-N-SHOOT 0.1mg/ml(P)
  • EPICATECHIN GALLATE, (-)-(P)
  • 8-methoxy-12a-methyl-3,4,4a,4b,5,6,10b,11,12,12a-decahydrochrysen-2(1h)-one
  • (-)-Epicatechin gallate, 99%, from green tea
  • epicatechol,gallate
  • l-epicatechingallate
  • EPICATECHIN GALLATE(ECG) FROM GREEN TEA 50% BY HPLC
  • EPICATECHIN GALLATE(ECG) FROM GREEN TEA 70% BY HPLC
  • (-)-ECG:BENZOICACID, 3,4,5- TRIHYDROXY-, 2-(3,4-DIHYDROXYPHENYL)-3,4-DIHYDRO-5,7-DIHYDROXY-2H-1-BENZOPYRAN-3-YLESTER, (2R-CIS)-,
  • (-)EPICATECHIN GALLATE WITH HPLC
  • Benzoic acid,3,4,5-trihydroxy-, (2R,3R)-2-(3,4-
  • dihydroxyphenyl)-3,4-dihydro-5,7-dihydroxy-2H-1-benzopyran-3-ylester
  • Epicatechol, 3-gallate
  • (-)-cis-2-(3,4-Dihydroxyphenyl)-3,4-dihydro-1(2H)-benzopyran-3,5,7-triol 3-gallate, (-)-cis-3,3μ,4μ,5,7-Pentahydroxyflavane 3-gallate
  • ECG，(-)-Epicatechin gallate
  • (2R)-2α-(3,4-Dihydroxyphenyl)-3,4-dihydro-2H-1-benzopyran-3β,5,7-triol 3-(3,4,5-trihydroxybenzoate)
  • 3,4-Dihydro-2α-(3,4-dihydroxyphenyl)-3β-(galloyloxy)-2H-1-benzopyran-5,7-diol
  • 3-O-Galloylgatechin
  • Cathechin 3-gallate
  • Gallic acid (2R)-2α-(3,4-dihydroxyphenyl)-5,7-dihydroxychroman-3β-yl ester
  • (-)-3,4,5-Trihydroxybenzoic acid [(2R)-3,4-dihydro-5,7-dihydroxy-2α-(3,4-dihydroxyphenyl)-2H-1-benzopyran]-3α-yl ester
  • (2R)-3,4-Dihydro-2α-(3,4-dihydroxyphenyl)-2H-1-benzopyran-3α,5,7-triol 3-(3,4,5-trihydroxybenzoate)
  • 3,4,5-Trihydroxybenzoic acid [(2R)-2α-(3,4-dihydroxyphenyl)-3,4-dihydro-5,7-dihydroxy-2H-1-benzopyran]-3α-yl ester
  • Aids000675
  • Aids-000675
  • Nsc636594
  • (-)-epicatecholgallate
  • (2r-cis)-oxy-2h-1-benzopyran-3-yleste
  • 3-gallate,(-)-epicatecho
  • benzoicacid,3,4,5-trihydroxy-,2-(3,4-dihydroxyphenyl)-3,4-dihydro-5,7-dihydr
  • ()-cis-2-(3,4-Dihydroxyphenyl)-3,4-dihydro-1
  • (2H)-benzopyran-3,5,7-triol 3-gallate
  • 3,4,5-Trihydroxybenzoic Acid (2R,3R)-2-(3,4-Dihydroxyphenyl)-3,4-dihydro-5,7-dihydroxy-2H-1-benzopyran-3-yl Ester
  • 3-Galloyl-(-)-epicatechin
  • 3-Galloyl-(2R,3R)-(-)-Epicatechin
  • 3-O-Galloylepicatechin
  • Teatannin
  • epi-Catechin 3-O-gallat
  • ()-Epicatechin gallate,froM green tea
  • BENZOIC ACID, 3,4,5-TRIHYDROXY-, 2-(3,4-DIHYDROXYPHENYL)-3,4-DIHYDRO-5,7-DIHYDROXY-2H-1-BENZOPYRAN-3-YL ESTER, (2R-CIS)-
  • (-)-EPICATECHIN GALLATE
  • EPICATECHIN GALLATE
  • EPICATECHIN GALLATE, (-)-
  • (-)-ECG
  • (-)-CIS-3,3',4',5,7-PENTAHYDROXYFLAVANE 3-GALLATE
  • (-)-CIS-2-(3,4-DIHYDROXYPHENYL)-3,4-DIHYDRO-1(2H)-BENZOPYRAN-3,5,7-TRIOL 3-GALLATE
  • (2R,3R)-2-(3,4-DIHYDROXYPHENYL)-3,4-DIHYDRO-1(2H)-BENZOPYRAN-3,5,7-TRIOL 3-(3,4,5-TRIHYDROXYBENZOATE)
  • L-ECG
  • EPICATECHIN MONOGALLATE
  • ECG)()-Epicatechin
  • (-)-Epicatechin gallate (2R,3R)-2-(3,4-Dihydroxyphenyl)-3,4-dihydro-1(2H)-benzopyran-3,5,7-triol 3-(3,4,5-trihydroxybenzoate)
  • (-)-Epicatechin gallate in stock Factory
  • (-)-Epicatechin gallate 1257-08-5
  • good price (-)-Epicatechin gallate 1257-08-5
  • Epicatechinegallate
  • (-)-EpicatechinGallate&gt
  • Benzoic acid, 3,4,5-trihydroxy-, (2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-5,7-dihydroxy-2H-1-benzopyran-3-yl ester
  • (-)-Epicatechin gallate/ECG