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Genus: PolygonumFamily: Polygonaceae
Plant original: Polygonum Cuspidatum Sieb.
Part used: Rhizome
Specification: Resveratrol 1%--98% Test By HPLC
Molecular weight:228.24
Mecular formula: C14H12O3
Melting point: 256?~257?
Active ingredient:Trans-Resveratrol
Appearance: white fine powder
Odour:special
Polygonum most grows in ravine, by the river and in shady warm places under trees, mainly distributed in the south of Changjiang River, Shan’xi, Henan and Shandong provinces in China.
The protophyte of Polygonum is regarded as rhizome and root of Polygonum cuspidatum Sieb. et Zucc., perennial herbaceous, being one of the Chinese medicinal herbs most in use in ancient China.
