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Sigma-Aldrich

(+)-Catechin hydrate

≥96.0% (sum of enantiomers, HPLC)

Sinônimo(s):

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

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About This Item

Fórmula empírica (Notação de Hill):
C15H14O6 · xH2O
Número CAS:
Peso molecular:
290.27 (anhydrous basis)
Beilstein:
3595244
Número CE:
Número MDL:
Código UNSPSC:
12352103
ID de substância PubChem:
NACRES:
NA.22

Ensaio

≥96.0% (sum of enantiomers, HPLC)

forma

powder

atividade óptica

[α]/D +26±2°, c = 1 in H2O

Impurezas

≤8% water

pf

175-177 °C (anhydrous) (lit.)

temperatura de armazenamento

2-8°C

cadeia de caracteres SMILES

[H]O[H].O[C@H]1Cc2c(O)cc(O)cc2O[C@@H]1c3ccc(O)c(O)c3

InChI

1S/C15H14O6.H2O/c16-8-4-11(18)9-6-13(20)15(21-14(9)5-8)7-1-2-10(17)12(19)3-7;/h1-5,13,15-20H,6H2;1H2/t13-,15+;/m0./s1

chave InChI

OFUMQWOJBVNKLR-NQQJLSKUSA-N

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Descrição geral

Catechin hydrate is a polyphenolic flavonoid that exhibits antioxidant properties. It is commonly found in green tea, grape seeds, and bark of few trees like acacia and mahogany.

Aplicação

(+)-Catechin hydrate can be used:
  • As an inhibitor of steel corrosion in hydrochloric acid solution.
  • As a model compound in the study of antimicrobial activities of flavonoids on Escherichia coli.
  • As a starting material for the synthesis of catechin glucosides of biological importance.

Atenção

loses water of hydration during storage

Pictogramas

Exclamation mark

Palavra indicadora

Warning

Frases de perigo

Classificações de perigo

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

Órgãos-alvo

Respiratory system

Código de classe de armazenamento

11 - Combustible Solids

Classe de risco de água (WGK)

WGK 3

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Equipamento de proteção individual

dust mask type N95 (US), Eyeshields, Gloves


Certificados de análise (COA)

Busque Certificados de análise (COA) digitando o Número do Lote do produto. Os números de lote e remessa podem ser encontrados no rótulo de um produto após a palavra “Lot” ou “Batch”.

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Antimicrobial mechanism of flavonoids against Escherichia coli ATCC 25922 by model membrane study
He M, et al.
Applied Surface Science, 305(5), 515-521 (2014)
Catechin glucosides: occurrence, synthesis, and stability
Raab T, et al.
Journal of Agricultural and Food Chemistry, 58(4), 2138-2149 (2010)
Catechin hydrate inhibits proliferation and mediates apoptosis of SiHa human cervical cancer cells
Al-Hazzani AA and Alshatwi AA
Food And Chemical Toxicology, 49(12), 3281-3286 (2011)
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A sequential injection system based on the ABTS (2,2'-azino-bis-(3-ethylbenzothiazoline-6-sulphonic-acid) methodology was developed. The proposed method, incorporating a mixing chamber in the side port of the selection valve, was evaluated to measure the total antioxidant activity of several beverages and foods.

Artigos

Antioxidants protect biological systems from oxidative damage produced by oxygen-containing free radicals and from redoxactive transition metal ions such as iron, copper, and cadmium.

Protocolos

Protocol for HPLC Analysis of Flavonoids on Ascentis® RP-Amide

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