1. Home
  2. Standardized Extracts
  3. Japanese Knotweed Extract
Standardized ExtractTraditional Chinese Medicine

Japanese Knotweed Extract (Reynoutria japonica) – Resveratrol 20–99%

Reynoutria japonica (Polygonum cuspidatum) · Polygonaceae

Marker compound
Resveratrol
Standardisation
20–99% (HPLC)
Assay method
HPLC
CAS
501-36-0
Plant part
Root
Origin
China, Japan

Japanese Knotweed Extract (Reynoutria japonica) – Resveratrol 20–99%

Japanese Knotweed extract is produced from the root of Reynoutria japonica (Polygonaceae family) and supplied as a standardized extract powder, standardized to Resveratrol. Available grades: 20%, 50%, 99%. Typical sourcing: China, Japan. For B2B formulation in nutraceuticals & supplements, pharmaceutical.

20%50%99%

Specifications

Botanical name Reynoutria japonica (Polygonum cuspidatum)
Common names Japanese knotweed, Hu Zhang
Plant family / part Polygonaceae / Root
Marker compound Resveratrol
Phytochemical class Polyphenols › Stilbenes
Available grades 20%, 50%, 99%
Assay method HPLC
CAS number 501-36-0
Pharmacopoeia & standards USP, Chinese Pharmacopoeia
Form Standardized Extract
Origin China, Japan
Pack sizes Sample (50 g), 250 g, 1 Kg, 5 Kg, 25 Kg; 99% grade: Sample (1 g), 50 g, 250 g, 1 Kg
Shelf life & storage Typically 24 months in sealed original packaging; store cool, dry and away from light

Formulation focus

  • Heart & Circulation
  • Antioxidant & Healthy Ageing

Industries

Nutraceuticals & Supplements, Pharmaceutical

Traditional systems: Traditional Chinese Medicine

Documentation

The Technical Data Sheet and Safety Data Sheet (GHS format) can be downloaded from this page; the batch Certificate of Analysis is supplied on request. Confirm the assay method (HPLC, UV or gravimetric) on the CoA, as results differ between methods.

For B2B formulation and research use. Statements have not been evaluated by the FDA or other regulators; this ingredient is not intended to diagnose, treat, cure or prevent any disease.