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Merck

E4143

(−)-Epigallocatechin gallate

≥95%

Sinónimos:

(−)-cis-2-(3,4,5-Trihydroxyphenyl)-3,4-dihydro-1(2H)-benzopyran-3,5,7-triol 3-gallate, (−)-cis-3,3′,4′,5,5′,7-Hexahydroxy-flavane-3-gallate, EGCG

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About This Item

Fórmula empírica (notación de Hill):
C22H18O11
Número CAS:
989-51-5
Peso molecular:
458.37
NACRES:
NA.25
PubChem Substance ID:
57654158
UNSPSC Code:
12352205
MDL number:
MFCD00075940

Nombre del producto

(−)-Epigallocatechin gallate, ≥95%

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

SMILES string

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 key

WMBWREPUVVBILR-WIYYLYMNSA-N

assay

≥95%

solubility

H2O: ≥5 mg/mL, clear

application(s)

metabolomics
vitamins, nutraceuticals, and natural products

storage temp.

2-8°C

Quality Level

200

Gene Information

human ... CYP1A2(1544)

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Application

(-)-Epigallocatechin gallate has been used:
  • as an anti-tumor agent on murine TRAMP metastatic prostate cell line by cell proliferation assay, apoptosis detection and modified Boyden-chamber assay
  • induces cell death in acute myeloid leukaemia through death associated protein kinase-2 pathway analyzed through cell viability, cell cycle and apoptosis assay
  • as an inhibitor of osteoclast differentiation in murine preosteoclast cell line RAW264.7
  • to promote myogenic differentiation

Biochem/physiol Actions

(-)-Epigallocatechin gallate (EGCG), an antioxidant polyphenol flavonoid exerts anti-tumor properties by inhibiting telomerase and DNA methyltransferase activity. EGCG inhibits the expression of matrix metalloproteinase-2 (MMP-2), MMP-9 and reduces the invasiveness. EGCG blocks the activation of epidermal growth factor (EGF) receptors and human epidermal growth factor receptor-2 (HER-2). EGCG increases bone mineral density and reduces bone resorption. EGCG inhibits osteoclastogenesis by inhibiting receptor activator of nuclear factor κ-B ligand (RANKL) induced nuclear factor κ B (NF-κB) transcriptional activity. EGCG reduces skeletal muscle atrophy. EGCG has anti-aging property and increases myogenic differentiation. EGCG inhibits fatty acid synthase and glutamate dehydrogenase activity.

General description

(−)-Epigallocatechin gallate from green tea is the prime bioactive component, accounting for 50-80% of the total catechin content. It comprises a chemical structure similar to that of epicatechin gallate (ECG), an ester of gallic acid and epigallocatechin.

pictograms

Exclamation markEnvironment
GHS07,GHS09

signalword

Warning

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 2 - Eye Irrit. 2 - Skin Sens. 1

Clase de almacenamiento

11 - Combustible Solids

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificados de análisis (COA)

Lot/Batch Number
0000494414
0000494414
0000493907
0000493907
0000489054

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  1. How does the storage temperature relate to shipping conditions?

    The storage conditions that a Sigma-Aldrich catalog and label recommend for products are deliberately conservative. For many products, long-term storage at low temperatures will increase the time during which they are expected to remain in specification and therefore are labeled accordingly. Where short-term storage, shipping time frame, or exposure to conditions other than those recommended for long-term storage will not affect product quality, Sigma-Aldrich will ship at ambient temperature. The products sensitive to short-term exposure to conditions other than their recommended long-term storage are shipped on wet or dry ice. Ambient temperature shipping helps to control shipping costs for our customers. At any time, our customers can request wet- or dry-ice shipment, but the special handling is at customer expense if our product history indicates that the product is stable for regular shipment. See Shipping and Storage for more information.

  2. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  3. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  4. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  5. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  6. Is (-)-Epigallocatechin gallate (Product No. E4143) sterile and tested for endotoxins?

    Product No. E4143 ((-)-Epigallocatechin gallate) is not prepared under sterile conditions and has not been tested for endotoxins.

  7. Is (-)-Epigallocatechin gallate (Product No. E4143) for human use

    No. Product No. E4143 ((-)-Epigallocatechin gallate) is for laboratory research use only, not for human use.

  8. What is the solubility of (-)-Epigallocatechin gallate (E4143)?

    We have tested the solubility of (-)-Epigallocatechin gallate at 5 mg/mL in water.

  9. What is the solution stability of (-)-Epigallocatechin gallate (E4143)?

    A solution of (-)-Epigallocatechin gallate in water at a concentration of 0.3 mg/mL was found to have significantly decreased in purity (from 99.6% to 81.7%) after 2.5 hours at room temperature. A similar solution of (-)-Epigallocatechin gallate in water at a concentration of 0.3 mg/mL was found to have decreased in purity only slightly (from 99.5% to 99.3%) after 2.0 hours at 4°C.

  10. Can (-)-Epigallocatechin gallate be determined in plasma and urine?

    The determination of (-)-Epigallocatechin gallate in plasma and urine by HPLC has been reported in Cancer Epidemiol. Biomark. Prev., 4, 393 (1995).

  11. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

Takuya Miyagawa et al.
Pharmaceutics, 12(5) (2020-05-02)
Neovascularization (NV) of the cornea disrupts vision which leads to blindness. Investigation of antiangiogenic, slow-release and biocompatible approaches for treating corneal NV is of great importance. We designed an eye drop formulation containing gelatin/epigallocatechin-3-gallate (EGCG) nanoparticles (NPs) for targeted therapy
(-)-Epigallocatechin-3-gallate stimulates myogenic differentiation through TAZ activation
Kim AR, et al.
Biochemical and Biophysical Research Communications, 486(2), 378-384 (2017)
(-)-Epigallocatechin gallate inhibition of osteoclastic differentiation via NF-kappaB
Lin RW, et al.
Biochemical and Biophysical Research Communications, 379(4), 1033-1037 (2009)
Epigallocatechin-3-gallate induces cell death in acute myeloid leukaemia cells and supports all-trans retinoic acid-induced neutrophil differentiation via death-associated protein kinase 2
Britschgi A, et al.
British Journal of Haematology, 149(1), 55-64 (2010)
Bing Fu et al.
Oxidative medicine and cellular longevity, 2019, 7824684-7824684 (2019-04-10)
Green tea is one of the most beverages with antioxidants and nutrients. As one of the major components of green tea, (-)-epicatechin gallate (ECG) was evaluated for its antioxidative properties in the present study. Cell proliferation assay, tube formation, cell
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