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C1788

Sigma-Aldrich

(±)-Catechin Hydrat

Synonym(e):

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

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About This Item

Empirische Formel (Hill-System):
C15H14O6 · xH2O
CAS-Nummer:
7295-85-4
Molekulargewicht:
290.27 (anhydrous basis)
Beilstein:
92762
EG-Nummer:
230-731-2
MDL-Nummer:
MFCD00149354
UNSPSC-Code:
85151701
PubChem Substanz-ID:
57653989
NACRES:
NA.79
Preise und Verfügbarkeit sind derzeit nicht verfügbar.

Assay

≥96% (HPLC)

Qualitätsniveau

200

Form

powder

Methode(n)

HPLC: suitable

Farbe

white to light brown

mp (Schmelzpunkt)

200 °C (decomposes on heating)

Lagertemp.

2-8°C

SMILES String

[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

InChIKey

OFUMQWOJBVNKLR-NQQJLSKUSA-N

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Verwandte Kategorien

Allgemeine Beschreibung

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]

Anwendung

(±)-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]

Biochem./physiol. Wirkung

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.

Piktogramme

Exclamation mark
GHS07

Signalwort

Warning

Gefahreneinstufungen

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

Zielorgane

Respiratory system

Lagerklassenschlüssel

11 - Combustible Solids

WGK

WGK 3

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Persönliche Schutzausrüstung

dust mask type N95 (US), Eyeshields, Gloves

Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (COA)

Lot/Batch Number
BCCK7982
BCCG4073
BCCF7528
BCCD9869
BCBZ7500

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(−)-Epicatechin ≥90% (HPLC)

Sigma-Aldrich

E1753

(−)-Epicatechin

(−)-Epicatechin analytical standard

Supelco

68097

(−)-Epicatechin

Green Tea Catechin Mix 100 μg/mL each component in acetonitrile: water (8:2) with 5% 1M HCl, ampule of 1.0 mL, certified reference material, Cerilliant®

Supelco

G-016

Green Tea Catechin Mix

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

Sigma-Aldrich

E4268

(−)-Epigallokatechingallat

(−)-Epigallokatechingallat analytical standard

Supelco

93894

(−)-Epigallokatechingallat

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
The modulatory effect of green tea catechin on drug resistance in human ovarian cancer cells
Przystupski D, et al.
Medicinal Chemistry Research, 28(5), 657-667 (2019)
Javier Rivero et al.
The New phytologist, 220(4), 1322-1336 (2018-07-10)
Arbuscular mycorrhizal (AM) symbioses can improve plant tolerance to multiple stresses. We compared three AM fungi (AMF) from different genera, one of them isolated from a dry and saline environment, in terms of their ability to increase tomato tolerance to
Harsh P Bais et al.
Plant signaling & behavior, 5(3), 239-246 (2009-12-22)
The occurrence of plant hormesis is a poorly understood phenomenon, wherein low doses of phytotoxins unusually promote growth responses in higher plants. In contrast, negative plant-plant interactions mediated through secreted small molecular weight compounds initiate growth inhibitory responses. Studies related
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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

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

    1 Antwort

    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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