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G6782

Sigma-Aldrich

(−)-Gallocatechin gallate

from green tea, ≥98% (HPLC)

Synonyme(s) :

(2S,3R)-2-(3,4,5-Trihydroxyphenyl)-3,4-dihydro-1(2H)-benzopyran-3,5,7-triol 3-(3,4,5-trihydroxybenzoate)

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About This Item

Formule empirique (notation de Hill):
C22H18O11
Numéro CAS:
4233-96-9
Poids moléculaire :
458.37
Numéro MDL:
MFCD00214298
Code UNSPSC :
12352200
ID de substance PubChem :
24895275
Nomenclature NACRES :
NA.77

Source biologique

green tea

Niveau de qualité

200

Essai

≥98% (HPLC)

Forme

powder

Application(s)

metabolomics
vitamins, nutraceuticals, and natural products

Température de stockage

2-8°C

Chaîne SMILES 

Oc1cc(O)c2C[C@@H](OC(=O)c3cc(O)c(O)c(O)c3)[C@@H](Oc2c1)c4cc(O)c(O)c(O)c4

InChI

1S/C22H18O11/c23-10-5-12(24)11-7-18(33-22(31)9-3-15(27)20(30)16(28)4-9)21(32-17(11)6-10)8-1-13(25)19(29)14(26)2-8/h1-6,18,21,23-30H,7H2/t18-,21+/m1/s1

Clé InChI

WMBWREPUVVBILR-NQIIRXRSSA-N

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Description générale

(−)-Gallocatechin gallate is a polyphenolic compound having a galloyl moiety. It is an epimerized form of epigallocatechin gallate, which is common tea catechin. Epimerization of tea catechins is common upon heat treatment or pasteurization process.

Application

(−)-Gallocatechin gallate has been used:
  • to perform the tannase activity assay of the recombinant Lactobacillus plantarum tannase enzyme
  • to study its inhibitory effects on HIV-1 integrase activity
  • to study its regulatory mechanism on cholesterol metabolism in rat liver
  • to analyze its effect as a polyphenol on human spermatozoa and their application in assisted reproductive technology
  • to study the interference in stress protective activity of cellular prion protein (PrPC) and the formation of scrapie prion protein (PrPSc)

Actions biochimiques/physiologiques

Tea catechins like (−)-Gallocatechin gallate are known to have antiviral, antioxidative, antimutagenic and antiobesity activities. It exhibits human immunodeficiency virus-1 (HIV-1) integrase inhibitory activity by disturbing the interaction between the human immunodeficiency virus-1 (HIV-1) integrase and virus DNA. GCG also shows impeding effect on the release of vero toxins (VTs) by enterohemorrhagic Escherichia coli. It displays an inhibitory effect on cholesterol absorption and is reported to be more effective than tea catechins in lowering plasma cholesterol, thus preventing atherosclerosis.

Pictogrammes

Exclamation mark
GHS07

Mention d'avertissement

Warning

Mentions de danger

H315,H319,H335

Classification des risques

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Organes cibles

Respiratory system

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

dust mask type N95 (US), Eyeshields, Gloves

Faites votre choix parmi les versions les plus récentes :

Certificats d'analyse (COA)

Lot/Batch Number
SLCH7064
SLCB5956
SLBT2107
SLBP7320V
SLBL7453V

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Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

Consulter la Bibliothèque de documents

Angelika S Rambold et al.
Journal of neurochemistry, 107(1), 218-229 (2008-08-12)
A hallmark in prion diseases is the conformational transition of the cellular prion protein (PrP(C)) into a pathogenic conformation, designated scrapie prion protein (PrP(Sc)), which is the essential constituent of infectious prions. Here, we show that epigallocatechin gallate (EGCG) and
Fan Jiang et al.
Clinical immunology (Orlando, Fla.), 137(3), 347-356 (2010-09-14)
Four catechins with the galloyl moiety, including catechin gallate (CG), epigallocatechin gallate (EGCG), gallocatechin gallate (GCG), and epicatechin gallate (ECG), were found to inhibit HIV-1 integrase effectively as determined by our ELISA method. In our docking study, it is proposed
Ikuo Ikeda et al.
Journal of agricultural and food chemistry, 51(25), 7303-7307 (2003-12-04)
It has been known that tea catechins, (-)-epicatechin (1), (-)-epigallocatechin (2), (-)-epicatechin gallate (3), and (-)-epigallocatechin gallate (4) are epimerized to(-)-catechin (5), (-)-gallocatechin (6), (-)-catechin gallate (7), and (-)-gallocatechin gallate (8), respectively, during retort pasteurization. We previously reported that tea
Ruijie Liu et al.
Journal of chromatography. A, 1635, 461740-461740 (2020-12-04)
In this study, a novel at-line nanofractionation screening platform was successfully developed for the rapid screening and identification of α-glucosidase inhibitors from natural products. A time-course bioassay based on high density well-plates was performed in parallel with high resolution mass
Lifeng Cai et al.
Antimicrobial agents and chemotherapy, 51(7), 2388-2395 (2007-04-25)
A metallopeptide-based fluorescence assay has been designed for the detection of small-molecule inhibitors of human immunodeficiency virus type 1 gp41, the viral protein involved in membrane fusion. The assay involves two peptides representing the inner N-terminal-heptad-repeat (HR1) coiled coil and
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