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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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About This Item

Empirical Formula (Hill Notation):
C15H14O7
CAS Number:
Molecular Weight:
306.27
NACRES:
NA.24
PubChem Substance ID:
UNSPSC Code:
85151701
MDL number:
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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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Application

(−)-Gallocatechin may be used as an analytical standard for the determination of the analyte in biological fluids and tea beverages 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.

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

pictograms

Exclamation mark

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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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)
K Koga et al.
Journal of food science, 78(1), H105-H111 (2013-01-03)
The pancreatic lipase inhibitory (PLI) activity of leaf extracts (aqueous, 60 and 99.8 (v/v)% EtOH) of Salacia reticulata Wight, referred to "Kothala himbutu" (KT) in Singhalese, was compared with that of KT stem extracts. Evaporated residue contents and PLI activity
Yoo-Hyun Lee et al.
International journal of molecular medicine, 30(1), 69-74 (2012-04-17)
Manipulating acetylation status of key gene targets is likely to be crucial for effective cancer therapy. In this study, we utilized green tea catechins, epicatechin (EC), epigallocatechin (EGC) and epigallocatechin-3-gallate (EGCG) to examine the regulation of androgen receptor acetylation in

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