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C1788

Sigma-Aldrich

(±)-Catechin hydrate

Sinónimos:

trans-2-(3,4-Dihydroxyphenyl)-3,4-dihydro-1(2H)-benzopyran-3,5,7-triol, trans-3,3′,4′,5,7-Pentahydroxyflavane

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About This Item

Fórmula empírica (notación de Hill):
C15H14O6 · xH2O
Número de CAS:
7295-85-4
Peso molecular:
290.27 (anhydrous basis)
Beilstein:
92762
Número CE:
230-731-2
Número MDL:
MFCD00149354
Código UNSPSC:
85151701
ID de la sustancia en PubChem:
57653989
NACRES:
NA.79
En este momento no podemos mostrarle ni los precios ni la disponibilidad

Ensayo

≥96% (HPLC)

Formulario

powder

técnicas

HPLC: suitable

color

white to light brown

mp

200 °C (decomposes on heating)

temp. de almacenamiento

2-8°C

cadena 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

Clave InChI

OFUMQWOJBVNKLR-NQQJLSKUSA-N

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Descripción general

Catechin is produced by Cutch tree and is abundantly found in tea leaves, grape seeds, vegetables and plant-based beverages. It is a plant-derived, polyphenolic anti-oxidant[1] and acts as a plant secondary metabolite.[2]

Aplicación

(±)-Catechin hydrate has been used:
  • to study its modulatory effect on drug resistance in human ovarian cancer cells[3]
  • to construct the standard curve of total flavonoid content[4]
  • to study its effects on the physiological parameters of Solanum lycopersicum[5]

Acciones bioquímicas o fisiológicas

Catechin has phytotoxic properties. Racemic catechin may be used in studies on seed germination and plant invasiveness.[6] Catechin and Epigallocatechin gallate (EGCG) may be used with other polyphenol flavonoids to study their effects in oxidation and peroxidation-related processes.[1]
Polyphenolic antioxidant. Used in traditional Chinese medicine.

Pictogramas

Exclamation mark
GHS07

Palabra de señalización

Warning

Frases de peligro

H315,H319,H335

Clasificaciones de peligro

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

Órganos de actuación

Respiratory system

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

dust mask type N95 (US), Eyeshields, Gloves

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Certificados de análisis (COA)

Lot/Batch Number
BCCK7982
BCCG4073
BCCF7528
BCCD9869
BCBZ7500

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In vitro potential of phenolic phytochemicals from black rice on starch digestibility and rheological behaviors
An JS, et al.
Journal of Cereal Science, 70, 214-220 (2016)
I Ibero-Baraibar et al.
Nutrition, metabolism, and cardiovascular diseases : NMCD, 24(4), 416-422 (2014-01-28)
Cocoa flavanols are recognised by their favourable antioxidant and vascular effects. This study investigates the influence on health of the daily consumption of ready-to-eat meals supplemented with cocoa extract within a hypocaloric diet, on middle-aged overweight/obese subjects. Fifty healthy male
Olga Michel et al.
Acta biochimica Polonica, 65(2), 173-184 (2018-05-26)
Until recently, green tea polyphenols were considered strong antioxidants. However, the latest reports have revealed that bioflavonoids can play a multiple role in anticancer therapy, including the inhibition of cell proliferation and generation of the oxidative stress in a dose-dependent
M T P Dentinho et al.
Animal : an international journal of animal bioscience, 1(5), 645-650 (2007-06-01)
Cistus ladanifer L. (CL) is a perennial shrub abundant in dry woods and dry land of Mediterranean zone, with high level of tannins. Tannins bind to protein, preventing its degradation in the digestive compartments. This tannin/protein complex may be advantageous
Kai Zhao et al.
Nucleic acids research, 35(13), 4441-4452 (2007-06-20)
Bacterial flagellar motility and chemotaxis help cells to reach the most favorable environments and to successfully compete with other micro-organisms in response to external stimuli. Escherichia coli is a motile gram-negative bacterium, and the flagellar regulon in E. coli is
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Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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