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Theaflavin monogallate

analytical standard

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About This Item

Fórmula empírica (notación de Hill):
C36H28O16
Número de CAS:
Peso molecular:
716.60
UNSPSC Code:
41116107
NACRES:
NA.24

grade

analytical standard

Quality Level

description

Mixture of Theaflavin 3-gallate and Theaflavin 3′-gallate

assay

≥80% (HPLC)

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

application(s)

food and beverages

format

neat

storage temp.

−20°C

InChI

1S/C36H28O16/c37-14-5-20(39)18-10-25(44)33(50-28(18)7-14)12-1-16-17(34-26(45)11-19-21(40)6-15(38)8-29(19)51-34)9-27(46)35(30(16)32(48)24(43)2-12)52-36(49)13-3-22(41)31(47)23(42)4-13/h1-9,25-26,33-34,37-42,44-47H,10-11H2,(H,43,48)/t25-,26?,33-,34?/m1/s1

InChI key

CKDOBTPKUHSESZ-MALJIYBWSA-N

General description

Theaflavin monogallate is a polyphenol,[1] and a naturally available antioxidant belonging to the group of theaflavins.[2]

Application

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.
Theaflavin monogallate may be used as a reference standard in the determination of theaflavin monogallate in tea using reversed-phase high-performance liquid chromatography (RP-HPLC) and capillary electrophoresis (CE).[1]

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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Mario A Vermeer et al.
Journal of agricultural and food chemistry, 56(24), 12031-12036 (2008-12-04)
Tea is one of the most widely consumed beverages in the world and may be associated with reduced heart disease rates. Theaflavins, which are formed in the production of black tea, have been suggested being responsible for the blood-cholesterol-lowering (BCL)
Ziyin Yang et al.
Toxicology in vitro : an international journal published in association with BIBRA, 22(5), 1250-1256 (2008-05-27)
The antioxidant properties of theaflavins and their gallate esters, namely theaflavin (TF1), theaflavin-3(3')-gallate (TF2) and theaflavin-3,3'-digallate (TF3) were investigated by comparing with epigallocatechin gallate (EGCG). The order of hydroxyl radicals-scavenging ability was TF3>TF2>TF1>EGCG. The order of 2,2-diphenyl-1-picrylhydrazyl scavenging ability was
J H Weisburger et al.
Cancer letters, 83(1-2), 143-147 (1994-08-15)
Heterocyclic amines (HCAs), formed during the cooking of meats and fish, are thought to be the genotoxic carcinogens associated with important types of human cancer in meat-eating populations, such as cancer of the breast, colon or pancreas. We studied the
Y C Liang et al.
Carcinogenesis, 20(4), 733-736 (1999-05-01)
Previous studies in our laboratory have shown that the major green tea polyphenol, (-)-epigallocatechin-3-gallate (EGCG), suppressed autophosphorylation of epidermal growth factor (EGF) receptor induced by EGF in human A431 epidermoid carcinoma cells. In this study, we examined the inhibitory effects
F Cai et al.
Folia biologica, 53(5), 164-172 (2007-11-03)
The major pathobiological mechanisms of IR injury include excitotoxicity, oxidative stress, and inflammation. TF3, a major constituent of black tea, possesses biological functions such as anti-oxidative and anti-inflammatory activities. The purpose of this study was to verify the neuronal protective

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