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Quick Details

  • Type: giant knotweed extract
  • Form: Powder
  • Part: root
  • Extraction Type: Solvent Extraction
  • Packaging: Drum, Plastic Container
  • Place of Origin: Hunan, China (Mainland)
  • Grade: Parmaceutical/Food Grade
  • Brand Name: 3WBE
  • Model Number: 100% Nature
  • Latin Name: Polygonum Cuspidatum
  • Product Type:: Rice white Powder Extract
  • Part of the Plant Used: Root & Rhizome
  • Extract Method:: Grain Alcohol
  • CAS#:: 501-36-0
  • Function:: Health proctect
  • Factory:: Large Output
  • Product:: High Quality and Competitive Price

Packaging & Delivery

Packaging Details 25kg/drum, Packing in paper-drums and two plastic-bags inside.
Delivery Time Within 5 working days after order confirmed

China Manufacturer  Polygonum Cuspidatum Extract

Product Description


Product Name: Polygonum Cuspidatum Extract

Botanical Name: Polygonum Cuspidatum

Part Used: Root

Specification: 10%--98% Resveratrol;50%--98% Emodin;20%-99% Polydatin

Test method: HPLC

Product name: Polydatin 2% ,98%

Chemical name: 3,4'-5-Trihydroxystilbene-3-beta-D-glucopyranoside

Appearance: White Fine Powder

Purity: 98% HPLC

CAS: 65914-17-2

Molecular Formula: C20H22O8

Molecular Weight: 390.38

Melting Point: 223-226 °C(lit.)

Boiling point: 707.7 °C at 760 mmHg

Flash Point: 381.8 °C

Density: 1.521 g/cm3

Index of Refraction: 1.736

Molar Refractivity: 103.11 cm3

Molar Volume: 256.5 cm3

Surface Tension: 77.7 dyne/cm

Enthalpy of Vaporization: 108.69 kJ/mol

Vapour Pressure: 5.08E-21 mmHg at 25°C

Name: Acetyl trans-resveratrol

Other name: Acetyl-trans-resveratrol;Acetyl Resveratrol

Synonyms: 3-(acetyloxy)-5-{(E)-2-[4-(acetyloxy)phenyl]ethenyl}phenyl acetate (non-preferred name)

Molecular Formula: C20H18O6

Molecular Weight: 354.3533

CAS Registry Number: 42206-94-0





What is Acetyl-resveratrol produced in 3W Botanical Extract Inc .?

Acetyl-resveratrol is called prodrug on medicinal chemistry, it is more stable than trans-resveratrol. When absorbed, it returns to resveratrol under action of metabolism.

Resveratrol (3,5,4'-trihydroxy-trans-stilbene) is a stilbenoid, a type of natural phenol, and a phytoalexin produced naturally by several plants – especially the roots of the Japanese Knotweed, from which it is extracted commercially – when under attack by pathogens such as bacteria or fungi.


What will Acetyl-resveratrol be used for?


2.Effect on cardiovascular system;

3.Antibacterial and antifungal;

4.Nourish and protect liver;

5.Antioxidant and quench free-radicals;

6. Impact on the metabolism of osseous issue.

Packaging & Shipping


Delivery Time: Around 3-5 workdays after your payment.

Package: In fiber-drums with two-plastic bags inside.

Net Weight: 25kgs/Drum /

Gross Weight: 28kgs/Drum Drum Size &

Volume: I.D.42cm × H52cm, 0.08 m³/

Drum Storage: Stored in dry and cool place, keep away from strong light and heat.

Shelf Life: Two years when properly stored.


1, DHL Express, FEDEX and EMS for quantity less than 50KG, usually called as DDU service;

2, Sea shipping for quantity over 500KG; and air shipping is available for 50KG above;

3, For high value products, please select air shipping and DHL express for safe;

4, Please confirm if you can make the clearance when goods reach your customs before placing an order, for buyers from Mexico, Turkey, Italy, Romania,Russia, and other remote area.

Company Information

3W Botanical Extract Inc. is one of the leading manufacturer of the Herbal Extracts in China, we do all for dedicated to the identification, development and production of natural active ingredients from Chinese herb.

We possess several advanced instrument of manufacture including Dynamic multifunction extractor, recycle concentrator, column separator, Vacuum drier, microwave drier, and so on. We have professional group of research, development, manufacture and technique, we also have rigorous and scientific manage system. 3W is Professional manufacturer of medicinal plant extract for export use in the nutraceutical, pharmaceutical, health-food , functional beverage ,and cosmetics industries.

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contact us

Contact Information :

Company: 3W Botanical Extract Inc.

web: www.3wbio.com

Contact Person: Amy Cue

Telephone: +0086-731-82827021

Mobile: 13667357144

Fax number: +0086-731-82938822

Skype: sales03.3wbio



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China (Mainland) | Manufacturer, Trading Company
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The supplier’s transactions conducted via Alibaba.com in the past 6 months.
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Supplier's Trade Assurance Limit: US $48,000
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