C1251

(+)-Catechin hydrate

≥98% (HPLC), powder

• Synonyme(s) : (+)-Cyanidol-3
• Formule empirique (notation de Hill) : C₁₅H₁₄O₆ · xH₂O
• CAS Number: 225937-10-0
• Poids moléculaire : 290.27 (anhydrous basis)
• Beilstein: 3595244
• Numéro CE : 205-825-1
• Numéro MDL: MFCD00150865
• Code UNSPSC : 12352200
• ID de substance PubChem : 57653982
• Nomenclature NACRES : NA.77

Propriétés

• Niveau de qualité: 200
• Essai: ≥98% (HPLC)
• Forme: powder
• Couleur: yellow to yellow with tan cast
• Pf: 175-177 °C (anhydrous) (lit.)
• Solubilité: ethanol: 50 mg/mL
• 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

Description

Description générale

Catechins are phytochemicals, richly present in black grapes, peaches, strawberries and broad beans. Catechins occur in various forms such as catechins, epicatechin, epicatechin gallate, epigallocatechin and epigallocatechin gallate.

Application

(+)-Catechin hydrate has been used:

• as a polyphenol standard in the determination of total polyphenols in the by-products of red wine
• as an additive to study its effects on in vitro methane production and substrate degradation in a triple-fed batch approach
• as a substrate to determine the activity of pure L. plantarum CECT 748T 14 recombinant tannase on catechin

Actions biochimiques/physiologiques

An antioxidant flavonoid of plant origin; a free radical scavenger, preventing free radical-mediated damage in a variety of biological systems. For example, at physiological pH catechin suppressed DNA strand breaks by hydroxyl radicals. It has also been shown to prevent human plasma oxidation. It delayed the consumption of endogenous lipid-soluble antioxidants and inhibited lipid oxidation. Catechin may also function as an inhibitor of fatty acid synthase.

Informations sur la sécurité

• Pictogrammes: GHS07
• Mention d'avertissement: Warning
• Mentions de danger: H315,H319,H335
• Conseils de prudence: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• 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