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03940590

(−)-Épicatéchine

primary reference standard

Synonyme(s) :

(−)-cis-3,3′,4′,5,7-Pentahydroxyflavane, (2R,3R)-2-(3,4-Dihydroxyphényl)-3,4-dihydro-1(2H)-benzopyrane-3,5,7-triol

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About This Item

Formule empirique (notation de Hill):
C15H14O6
Numéro CAS:
490-46-0
Poids moléculaire :
290.27
Numéro Beilstein :
92760
Numéro CE :
207-710-1
Numéro MDL:
MFCD00075648
Code UNSPSC :
85151701
ID de substance PubChem :
329747844
Nomenclature NACRES :
NA.24

Qualité

primary reference standard

Durée de conservation

limited shelf life, expiry date on the label

Fabricant/nom de marque

HWI

Pf

240 °C (dec.) (lit.)

Application(s)

food and beverages

Température de stockage

−20°C

Chaîne SMILES 

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

Clé InChI

PFTAWBLQPZVEMU-UKRRQHHQSA-N

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Catégories apparentées

Description générale

Epicatechin is a potential antioxidant flavonoid, which belongs to the catechin family. It is commonly found in monomeric or/and oligomeric forms in green teas, red wine, cocoa products, and various fruits like grape seeds.
Produced and qualified by HWI pharma services GmbH.
Exact content by quantitative NMR can be found on the certificate.

Application

Reference Standard in the analysis of herbal medicinal products

Pictogrammes

Exclamation mark
GHS07

Mention d'avertissement

Warning

Mentions de danger

H315,H319,H335

Conseils de prudence

P261 - P305 + P351 + P338

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

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Certificats d'analyse (COA)

Lot/Batch Number
HWI02311-3
HWI02311-2
HWI02311-1
HWI02311
HWI01708-1

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Les clients ont également consulté

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(+)-Catechin Pharmaceutical Secondary Standard; Certified Reference Material

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PHR1963

(+)-Catechin

(+)-Catechin United States Pharmacopeia (USP) Reference Standard

USP

1096790

(+)-Catechin

(−)-Epigallocatechin analytical standard

Supelco

08108

(−)-Epigallocatechin

(+)-Catechin hydrate ≥98% (HPLC), powder

Sigma-Aldrich

C1251

(+)-Catechin hydrate

(−)-Catechin ≥97% (HPLC), from green tea

Sigma-Aldrich

C0567

(−)-Catechin

(+)-Catechin phyproof® Reference Substance

PHL89172

(+)-Catechin

Structures of (?)-epicatechin glucuronide identified from plasma and urine after oral ingestion of (?)-epicatechin: differences between human and rat
Natsume M, et al.
Free Radical Biology & Medicine, 34, 840-849 (2003)
Uptake and metabolism of epicatechin and its access to the brain after oral ingestion
Mohsen EA.MM, et al.
Free Radical Biology & Medicine, 33, 1693-1702 (2002)
Major flavonoids in grape seeds and skins: antioxidant capacity of catechin, epicatechin, and gallic acid
Yilmaz Y and Toledo.TR
Journal of Agricultural and Food Chemistry, 52, 255-260 (2004)
Min-Hsiung Pan et al.
Food & function, 2(2), 101-110 (2011-07-23)
The consumption of green tea has long been associated with a reduced risk of cancer development. (-)-Epicatechin-3-gallate (ECG) or (-)-epigallocatechin-3-gallate (EGCG) are the major antioxidative polyphenolic compounds of green tea. They have been shown to exert growth-inhibitory potential of various
Elena Roura et al.
Journal of agricultural and food chemistry, 53(16), 6190-6194 (2005-08-04)
A rapid liquid chromatography electrospray ionization tandem mass spectrometry with negative ion detection method was developed and validated to determine cocoa flavonoid metabolites in human plasma and urine after the intake of a standard portion of a cocoa beverage. A
Afficher tous les articles scientifiques apparentés

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Analysis of Caffeine and Catechins in Green Tea

Validated HPLC method (based on Ph. Eur. Monograph 2668) for quantifying catechins and caffeine in decaffeinated green tea using a Chromolith® High Resolution RP-18e column with advantages in terms of backpressure and matrix robustness.

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