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Merck

03960590

Epigallocatechin

primary reference standard

Synonym(s):

(−)-Epigallocatechin, (−)-cis-2-(3,4,5-Trihydroxyphenyl)-3,4-dihydro-1(2H)-benzopyran-3,5,7-triol, (−)-cis-3,3′,4′,5,5′,7-Hexahydroxyflavane

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10 MG

€473.00

€473.00

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About This Item

Empirical Formula (Hill Notation):
C15H14O7
CAS Number:
970-74-1
Molecular Weight:
306.27
NACRES:
NA.24
PubChem Substance ID:
329747847
UNSPSC Code:
85151701
MDL number:
MFCD00075939

Key Documents

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Product Name

Epigallocatechin, primary reference standard

InChI key

XMOCLSLCDHWDHP-IUODEOHRSA-N

SMILES string

O[C@@H]1Cc2c(O)cc(O)cc2O[C@@H]1c3cc(O)c(O)c(O)c3

InChI

1S/C15H14O7/c16-7-3-9(17)8-5-12(20)15(22-13(8)4-7)6-1-10(18)14(21)11(19)2-6/h1-4,12,15-21H,5H2/t12-,15-/m1/s1

grade

primary reference standard

shelf life

limited shelf life, expiry date on the label

manufacturer/tradename

HWI

application(s)

food and beverages

storage temp.

−20°C

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Epigallocatechin primary reference standard

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Epigallocatechin

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03970590

Epigallocatechin gallate

Quercetin dihydrate primary reference standard

00200595

Quercetin dihydrate

Aspalathin primary reference standard

03520585

Aspalathin

grade

primary reference standard

grade

primary reference standard

grade

primary reference standard

grade

primary reference standard

shelf life

limited shelf life, expiry date on the label

shelf life

limited shelf life, expiry date on the label

shelf life

limited shelf life, expiry date on the label

shelf life

limited shelf life, expiry date on the label

manufacturer/tradename

HWI

manufacturer/tradename

HWI

manufacturer/tradename

HWI

manufacturer/tradename

HWI

application(s)

food and beverages

application(s)

food and beverages

application(s)

-

application(s)

food and beverages

storage temp.

−20°C

storage temp.

−20°C

storage temp.

-

storage temp.

−20°C

Application

Reference Standard in the analysis of herbal medicinal products

Biochem/physiol Actions

Green tea polyphenol. Anticancer agent. Lower antioxidant activity than EGCG.

General description

Produced and qualified by HWI pharma services GmbH.
Exact content by quantitative NMR can be found on the certificate.

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
HWI02446-2
HWI02446-1
HWI02446
HWI01554-4
HWI01554-3

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Denisa Margina et al.
General physiology and biophysics, 31(1), 47-55 (2012-03-27)
Quercetin and epigallocatechin gallate are two of the most abundant polyphenols in dietary plants, including apples, onions, red wine and green tea. The bioactivity of polyphenols is linked to their ability to interact with cell membranes without being internalized. The
Ranjith Arimboor et al.
Journal of food science, 77(10), C1036-C1041 (2012-09-04)
Inhibitory potential of sea buckthorn (Hippophae rhamnoides L) seed proanthocyanidins against oxidative stress and xanthine oxidase activity was evaluated. Composition of antioxidant proanthocyanidins was profiled by analyzing the cleavage products obtained by the acid catalyzed hydrolysis in the presence of
Hongyu Wang et al.
Journal of agricultural and food chemistry, 60(12), 3098-3104 (2012-03-08)
Proanthocyanidins in unripe Manilkara zapota (chiku) were isolated using solvent extraction followed by Sephadex LH-20 fractionation with a yield of 0.9%. HPLC analysis using a diol column revealed well-resolved oligomers ranging from dimer to hexamer. The majority of the proanthocyanidins
Li-Ping Bai et al.
PloS one, 8(1), e53962-e53962 (2013-01-22)
With the aim of enhancing G-quadruplex binding activity, two new glucosaminosides (16, 18) of penta-methylated epigallocatechin were synthesized by chemical glycosylation. Subsequent ESI-TOF-MS analysis demonstrated that these two glucosaminoside derivatives exhibit much stronger binding activity to human telomeric DNA and
Yi-Bin Zhou et al.
Journal of agricultural and food chemistry, 60(7), 1619-1627 (2012-01-10)
Metabolic profiles of broiler chickens were examined after the ingestion of green tea, tea polyphenols, and (-)-epigallocatechin-3-gallate (EGCG). Solid-phase extraction of serum and litters yielded free catechins and their metabolites, which were then identified and quantified by liquid chromatography-tandem mass
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