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55016

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Theaflavin

analytical standard

Synonyme(s) :

3,4,5-Trihydroxy-1,8-bis[(2R,3R)-3,5,7-trihydroxy-2-chromanyl]-6-benzo[7]annulenone, 3,4,6-Trihydroxy-1,8-bis(3α,5,7-trihydroxy-2α-chromanyl)-5H-benzocyclohepten-5-one

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About This Item

Formule empirique (notation de Hill):
C29H24O12
Numéro CAS:
Poids moléculaire :
564.49
Numéro MDL:
Code UNSPSC :
41116107
ID de substance PubChem :
Nomenclature NACRES :
NA.24

Qualité

analytical standard

Niveau de qualité

Essai

≥90.0% (HPLC)

Technique(s)

HPLC: suitable
gas chromatography (GC): suitable

Application(s)

food and beverages

Format

neat

Température de stockage

−20°C

Chaîne SMILES 

O[C@@H]1Cc2c(O)cc(O)cc2O[C@@H]1C3=Cc4c(cc(O)c(O)c4C(=O)C(O)=C3)[C@H]5Oc6cc(O)cc(O)c6C[C@H]5O

InChI

1S/C29H24O12/c30-11-3-17(32)15-8-21(36)28(40-23(15)5-11)10-1-13-14(7-20(35)27(39)25(13)26(38)19(34)2-10)29-22(37)9-16-18(33)4-12(31)6-24(16)41-29/h1-7,21-22,28-33,35-37,39H,8-9H2,(H,34,38)/t21-,22-,28-,29-/m1/s1

Clé InChI

IPMYMEWFZKHGAX-ZKSIBHASSA-N

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Description générale

Theaflavin is a polyphenol, naturally available in tea, which can mainly play a role in the inhibition of xanthine oxidase enzyme to yield uric acid. It can also find applications in reducing oxidative stress and can also act like scavengers of superoxide.

Application

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Conditionnement

Bottomless glass bottle. Contents are inside inserted fused cone.

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

Eyeshields, Gloves, type N95 (US)


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Certificats d'analyse (COA)

Lot/Batch Number

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Consulter la Bibliothèque de documents

Wenxiang Wang et al.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 50(9), 3243-3250 (2012-07-04)
Male Sprague-Dawley rats were treated with cadmium (Cd) (0.4 mg/kg body weight, s.c., once a day) and three concentrations of theaflavins (50, 100 or 200mg/kg body weight, orally, once a day) for five weeks to evaluate the protective role of
Suchismita Mohanty et al.
Frontiers in bioscience (Scholar edition), 4, 300-320 (2011-12-29)
With phytochemicals executing a plethora of anti-tumor mechanisms, targeting the 'guardian angel' p53 appears to be a critical strategy to energize the process of cancer therapeutics. Regulation of anti-tumor p53 functions by dietary plant polyphenols particularly black tea and its
Wenxiang Wang et al.
Journal of cardiovascular pharmacology, 59(5), 434-440 (2012-01-06)
A model of homocysteine-induced injury in vascular endothelial cells was established to evaluate the protective role of theaflavins on homocysteine-injured human vascular endothelial cells (HUVECs). The cells were co-incubated with 3 concentrations of theaflavins (5, 10, or 20 mg/L) and
Inhibition of xanthine oxidase and suppression of intracellular reactive oxygen species in HL-60 cells by theaflavin-3, 3 `-digallate,(?)-epigallocatechin-3-gallate, and propyl gallate
Lin K-J, et al.
Journal of Agricultural and Food Chemistry, 48, 2736-2743 (2000)
Viktoria Knaze et al.
The British journal of nutrition, 108(6), 1095-1108 (2011-12-22)
Epidemiological studies suggest health-protective effects of flavan-3-ols and their derived compounds on chronic diseases. The present study aimed to estimate dietary flavan-3-ol, proanthocyanidin (PA) and theaflavin intakes, their food sources and potential determinants in the European Prospective Investigation into Cancer

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