03910590

(±)-Catechin Hydrat

primary reference standard

• 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
• Empirische Formel (Hill-System): C₁₅H₁₄O₆ · xH₂O
• CAS-Nummer: 7295-85-4
• Molekulargewicht: 290.27 (anhydrous basis)
• Beilstein: 92762
• EG-Nummer: 205-825-1
• MDL-Nummer: MFCD00149354
• UNSPSC-Code: 85151701
• PubChem Substanz-ID: 329747836
• NACRES: NA.24

Eigenschaften

• Qualität: primary reference standard
• Assay: >90.0%
• Form: powder
• Haltbarkeit: limited shelf life, expiry date on the label
• Hersteller/Markenname: HWI
• Anwendung(en): food and beverages
• Lagertemp.: −20°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

Beschreibung

Allgemeine Beschreibung

Catechin hydrate, a flavononol, belongs to the class of flavonoids. It is present in abundance in Siberian larch (Larix sibirica) and in silymarin extract of milk thistle seeds. Its potent chemopreventive action by virtue of the regulation of genes through the ARE-dependent pathway has been widely investigated. It also shows potential antioxidant activity against ovarian cancer cell growth, cellular melanogenesis, human breast cancer, etc.

Produced and qualified by HWI pharma services GmbH.
Exact content by quantitative NMR can be found on the certificate.

Anwendung

Catechin hydrate may be used as a reference standard for the determination of the analyte in walnut leaves by high-performance liquid chromatography (HPLC).

Biochem./physiol. Wirkung

Polyphenolic antioxidant. Used in traditional Chinese medicine.

Sicherheitshinweise

• Piktogramme: GHS07
• Signalwort: Warning
• H-Sätze: H315,H319,H335
• P-Sätze: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• 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