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Merck

01388

(−)-Gallocatechin

analytical standard

Synonym(s):

(2S,3R)-2-(3,4,5-Trihydroxyphenyl)-3,4-dihydro-1(2H)-benzopyran-3,5,7-triol

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10 MG

$698.00

$698.00

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About This Item

Empirical Formula (Hill Notation):
C15H14O7
CAS Number:
3371-27-5
Molecular Weight:
306.27
NACRES:
NA.24
PubChem Substance ID:
329747262
UNSPSC Code:
85151701
MDL number:
MFCD01632616

Key Documents

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Product Name

(−)-Gallocatechin, analytical standard

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

SMILES string

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

InChI key

XMOCLSLCDHWDHP-DOMZBBRYSA-N

grade

analytical standard

assay

≥97.0% (HPLC)

shelf life

limited shelf life, expiry date on the label

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

application(s)

food and beverages

format

neat

storage temp.

2-8°C

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This Item
G665708108E4268
(−)-Gallocatechin analytical standard

Supelco

01388

(−)-Gallocatechin

(−)-Gallocatechin ≥98% (HPLC)

Sigma-Aldrich

G6657

(−)-Gallocatechin

(−)-Epigallocatechin analytical standard

Supelco

08108

(−)-Epigallocatechin

(−)-Epigallocatechin gallate ≥80% (HPLC), from green tea

Sigma-Aldrich

E4268

(−)-Epigallocatechin gallate

technique(s)

HPLC: suitable, gas chromatography (GC): suitable

technique(s)

-

technique(s)

HPLC: suitable, gas chromatography (GC): suitable

technique(s)

-

grade

analytical standard

grade

-

grade

analytical standard

grade

-

application(s)

food and beverages

application(s)

metabolomics
vitamins, nutraceuticals, and natural products

application(s)

food and beverages

application(s)

metabolomics
vitamins, nutraceuticals, and natural products

format

neat

format

-

format

neat

format

-

assay

≥97.0% (HPLC)

assay

≥98% (HPLC)

assay

≥90% (HPLC)

assay

≥80% (HPLC)

shelf life

limited shelf life, expiry date on the label

shelf life

-

shelf life

-

shelf life

-

Application

(−)-Gallocatechin may be used as an analytical standard for the determination of the analyte in biological fluids[1][2] and tea beverages[3] by chromatography-based techniques.

General description

Gallocatechin belongs to the catechin class of organic compounds and is one of the major components of green tea. The beneficial effects of catechins include anti-tumorigenic, anti-mutagenic, anti-pathogenic, and anti-oxidative properties.[3]

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

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
WXBF6875V
WXBF3342V
WXBD8411V
WXBD9599V
WXBD6159V

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Determination of catechins and catechin gallates in biological fluids by HPLC with coulometric array detection and solid phase extraction
Chu KO, et al.
Analytica Chimica Acta, 510(1), 69-76 (2004)
Joaudimir Castro et al.
Talanta, 82(5), 1687-1695 (2010-09-30)
Presented here is the quantitative analysis of green tea NIST standard reference materials (SRMs) via liquid chromatography-particle beam/electron ionization mass spectrometry (LC-PB/EIMS). Three different NIST green tea standard reference materials (SRM 3254 Camellia sinesis Leaves, SRM 3255 C. sinesis Extract
Determination of catechins in human plasma after commercial canned green tea ingestion by high-performance liquid chromatography with electrochemical detection using a microbore column
Kotani A, et al.
Journal of Chromatography. B, Biomedical Sciences and Applications, 788(2), 269-275 (2003)
Kusum Rathore et al.
Carcinogenesis, 33(1), 174-183 (2011-11-03)
Long-term exposure to low doses of environmental carcinogens contributes to sporadic human breast cancers. Epidemiologic and experimental studies indicate that green tea catechins (GTCs) may intervene with breast cancer development. We have been developing a chronically induced breast cell carcinogenesis
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
View All Related Papers

Articles

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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