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22110

Sigma-Aldrich

(+)-Catechin hydrate

≥96.0% (sum of enantiomers, HPLC)

Sinonimo/i:

(+)-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

Formula empirica (notazione di Hill):
C15H14O6 · xH2O
Numero CAS:
225937-10-0
Peso molecolare:
290.27 (anhydrous basis)
Beilstein:
3595244
Numero CE:
205-825-1
Numero MDL:
MFCD00150865
Codice UNSPSC:
12352103
ID PubChem:
57647962

Saggio

≥96.0% (sum of enantiomers, HPLC)

Forma fisica

powder

Attività ottica

[α]/D +26±2°, c = 1 in H2O

Impurezze

≤8% water

Punto di fusione

175-177 °C (anhydrous) (lit.)

Temperatura di conservazione

2-8°C

Stringa SMILE

[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
OFUMQWOJBVNKLR-NQQJLSKUSA-N

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Categorie correlate

Descrizione generale

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.

Applicazioni

(+)-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.

Avvertenza

loses water of hydration during storage

Pittogrammi

Exclamation mark
GHS07

Avvertenze

Warning

Indicazioni di pericolo

H315 - H319 - H335

Classi di pericolo

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

Organi bersaglio

Respiratory system

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

dust mask type N95 (US), Eyeshields, Gloves

Certificati d'analisi (COA)

Cerca il Certificati d'analisi (COA) digitando il numero di lotto/batch corrispondente. I numeri di lotto o di batch sono stampati sull'etichetta dei prodotti dopo la parola ‘Lotto’ o ‘Batch’.

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(−)-Catechin gallate ≥98% (HPLC), from green tea

Sigma-Aldrich

C0692

(−)-Catechin gallate

(−)-Epicatechin ≥98% (HPLC), from green tea

Sigma-Aldrich

E4018

(−)-Epicatechin

(−)-Epicatechin analytical standard

Supelco

68097

(−)-Epicatechin

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

Sigma-Aldrich

E4268

(−)-Epigallocatechin gallate

(−)-Epicatechin gallate ≥98% (HPLC), from green tea

Sigma-Aldrich

E3893

(−)-Epicatechin gallate

Supelco

Supelco

G-016

Green Tea Catechin Mix

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
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