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Merck

01388

(−)-Gallocatechin

analytical standard

Sinônimo(s):

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

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10 MG

R$ 2.394,00

R$ 2.394,00

Previsão de entrega em08 de janeiro de 2026Detalhes

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Sobre este item

Fórmula empírica (Notação de Hill):
C15H14O7
Número CAS:
3371-27-5
Peso molecular:
306.27
NACRES:
NA.24
PubChem Substance ID:
329747262
UNSPSC Code:
85151701
MDL number:
MFCD01632616

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Nome do produto

(−)-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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1 of 4

Este 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

Classe de armazenamento

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Escolha uma das versões mais recentes:

Certificados de análise (COA)

Lot/Batch Number
WXBF6875V
WXBF3342V
WXBD8411V
WXBD9599V
WXBD6159V

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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)
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)
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
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
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Artigos

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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