(−)-Catechin
SIGMA/C0567 - ≥97% (HPLC), from green tea
Synonym: (−)-trans-3,3′,4′,5,7-Pentahydroxyflavane; (2S,3R)
CAS Number: 18829-70-4
Empirical Formula (Hill Notation): C15H14O6
Molecular Weight: 290.27
EC Number: 242-611-7
MDL Number: MFCD00135997
Linear Formula: C15H14O6
Product Type: Chemical
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| assay | ≥97% (HPLC) |
| biological source | green tea |
| form | powder |
| InChI | 1S/C15H14O6/c16-8-4-11(18 |
| InChI key | PFTAWBLQPZVEMU-HIFRSBDPSA |
| Quality Level | 200  |
| SMILES string | O[C@@H]1Cc2c(O)cc(O)cc2O[ |
| storage temp. | 2-8°C |
| Application: | (-)-Catechin has been used: • to test its binding affinity towards estrogen receptor • as a reference standard in high-performance liquid chromatography for quantification of polyphenols from plant extracts (HPLC) • as a reference standard in kinetic studies to quantify antioxidants from Iranian green tea leaves |
| Biochem/physiol Actions: | Catechins have wide biological functionality. They induce antiviral and anticancer activities. Catechins also play a key role in regulating carbohydrate and lipid metabolism. It prevents fat accumulation. |
| General description: | Catechins are major flavonoids present in green tea accounting to 90%. (−)-catechin is comparatively less bioavailable than the (+)-catechin for intestinal absorption. |
| Packaging: | 5 mg in glass bottle |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥97% (HPLC) |
| Storage Temp. | 2-8°C |
| UNSPSC | 12352200 |