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Key Documents

22110

Sigma-Aldrich

(+)-Catechin hydrate

≥96.0% (sum of enantiomers, HPLC)

Synonyme(s) :

(+)-Cyanidol-3

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About This Item

Formule empirique (notation de Hill):
C15H14O6 · xH2O
Numéro CAS:
Poids moléculaire :
290.27 (anhydrous basis)
Numéro Beilstein :
3595244
Numéro CE :
Numéro MDL:
Code UNSPSC :
12352103
ID de substance PubChem :
Nomenclature NACRES :
NA.22

Pureté

≥96.0% (sum of enantiomers, HPLC)

Forme

powder

Activité optique

[α]/D +26±2°, c = 1 in H2O

Impuretés

≤8% water

Pf

175-177 °C (anhydrous) (lit.)

Température de stockage

2-8°C

Chaîne 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

Clé InChI

OFUMQWOJBVNKLR-NQQJLSKUSA-N

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Description générale

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.

Application

(+)-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.

Attention

loses water of hydration during storage

Pictogrammes

Exclamation mark

Mention d'avertissement

Warning

Mentions de danger

Classification des risques

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

Organes cibles

Respiratory system

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

dust mask type N95 (US), Eyeshields, Gloves


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Consulter la Bibliothèque de documents

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)
Duckgue Lee et al.
International journal of molecular sciences, 20(24) (2019-12-19)
Endoplasmic reticulum (ER) stress is known to influence various cellular functions, including cell cycle progression. Although it is well known how ER stress inhibits cell cycle progression at the G1 phase, the molecular mechanism underlying how ER stress induces G2/M
Arianna Ricci et al.
Applied spectroscopy, 69(11), 1243-1250 (2015-12-10)
Attenuated total reflection Fourier transform infrared (FT-IR) spectroscopy was used to characterize 40 commercial tannins, including condensed and hydrolyzable chemical classes, provided as powder extracts from suppliers. Spectral data were processed to detect typical molecular vibrations of tannins bearing different
Jun Liu et al.
International journal of biological macromolecules, 72, 1479-1484 (2014-10-16)
In this study, the antioxidant activity and hepatoprotective effect of inulin and catechin grafted inulin (catechin-g-inulin) against carbon tetrachloride (CCl4)-induced acute liver injury were investigated. Results showed that both inulin and catechin-g-inulin had moderate scavenging activity on superoxide radical, hydroxyl
Bradley W Bolling et al.
Food chemistry, 187, 189-196 (2015-05-16)
The goal of this work was to characterize how the date of harvest of 'Viking' aronia berry impacts juice pigmentation, sugars, and antioxidant activity. Aronia juice anthocyanins doubled at the fifth week of the harvest, and then decreased. Juice hydroxycinnamic

Articles

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.

Protocoles

Coumaric acid; Quercitrin; Myricetin; Quercetin

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