03910590

(±)-Catechin hydrate

primary reference standard

• Sinónimos: trans-2-(3,4-Dihydroxyphenyl)-3,4-dihydro-1(2H)-benzopyran-3,5,7-triol, trans-3,3′,4′,5,7-Pentahydroxyflavane
• Fórmula empírica (notación de Hill): C₁₅H₁₄O₆ · xH₂O
• Número de CAS: 7295-85-4
• Peso molecular: 290.27 (anhydrous basis)
• Beilstein/REAXYS Number: 92762
• EC Number: 205-825-1
• MDL number: MFCD00149354
• UNSPSC Code: 85151701
• PubChem Substance ID: 329747836
• NACRES: NA.24

Propiedades

• grade: primary reference standard
• assay: >90.0%
• form: powder
• shelf life: limited shelf life, expiry date on the label
• manufacturer/tradename: HWI
• application(s): food and beverages
• storage temp.: −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
• InChI key: OFUMQWOJBVNKLR-NQQJLSKUSA-N

Descripción

General description

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.

Application

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 Actions

Polyphenolic antioxidant. Used in traditional Chinese medicine.

Información de seguridad

• pictograms: GHS07
• signalword: Warning
• hcodes: H315,H319,H335
• pcodes: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• target_organs: Respiratory system
• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable