Bulk Natural Polygonum Cuspidatum Root Extract Pure Trans Resveratrol 98%

• CAS: 501-36-0
• Mf: C14h12o3
• Type: Herbal Extract
• Variety: Polygonum Cuspidatum Extract
• Extraction Type: Solvent Extraction
• Einecs: 610-504-8
• Model NO.: Dongfang
• Grade: Food Grade
• Test Method: HPLC
• Shelf Life: 2 Years
• Transport Package: 25kg/Drum
• Specification: 200g
• Trademark: Dongfang
• Origin: China
• HS Code: 29072990
• Production Capacity: 9000 Kilogram/Kilograms Per Month

Product Description

Resveratrol

     Resveratrol is a kind of natural polyphenols with strong biological properties, mainly derived from peanuts, grapes (red wine), knotweed, mulberry and other plants.
     Resveratrol generally exists in the trans form in nature, which is theoretically more stable than the cis form. The efficacy of resveratrol mainly comes from its trans structure.
     Resveratrol is in great demand in the market. Because of its low content in plants and high extraction costs, the use of chemical methods to synthesize resveratrol has become the main means of its development.

Certificate of Analysis

Item	Specification	Method Result
Physical Property
Appearance	White Powder	Organoleptic Conforms
Odour	Characteristic	Organoleptic Conforms
Mesh Size	100% through 80% mesh size	USP32<786> Conforms
Genersal Analyis
Identification	Identical to R.S. sample	HPLC	Conforms
Specification	≥99%	HPLC	99.56%
Loss on Drying	≤5.0%	Eur.Ph.6.[2.8.17]	2.63%
Ash	≤5.0%	Eur.Ph.6.0[2.4.16] 3.37%	3.69%
Contaminants
Lead(Pb)	≤3.0mg/kg	Eur.Ph6.0<2.2.58>ICP-MS 2.1
Arsenic(As)	≤2.0mg/kg	Eur.Ph6.0<2.2.58>ICP-MS 1.9
Cadmium(Cd)	≤1.0mg/kg	Eur.Ph6.0<2.2.58>ICP-MS 0.7
Mercury(Hg)	≤0.1mg/kg	Eur.Ph6.0<2.2.58>ICP-MS 0.07
Microbiological
Total Plate Count	≤1000cfu/g	USP30<61> 120
Yeast &Mold	≤100cfu/g	USP30<61> 40
E.Coli.	Negative	USP30<62> Conforms
Salmonella	Negative	USP30<62> Conforms
Shelf Life	24 months under the conditions below, no antioxidant used
Package&Storage	Standard packed in fiber-drum and two plastic bags inside
	Store in a cool,dry place away from Moisture, Light, Oxygen
Mufacturer	Shaanxi Rongsheng Bio-Engineering Co., Ltd.

Q1: Why should I choose your company?

A: We are integrated with industry and trade. We have our own factory, all products are produced in the factory, quality safety is guaranteed; We have a professional R&D team, production team, sales team and after-sales team, the whole process for your shopping escort.

Q2: How does your factory make sure the product quality?

A: 1.We will check the samples randomly.
2.Ensure the quality and storage safety of each batch of products.
3.We will make a final inspection before shipment to avoid any problems.

Q3: Can I get some free sample?

A: We are happy to provide samples free of charge, you only need to pay for the shipping cost,  Please consult customer service for details.

Q4: ls there any discount?

A: Yes, some products are being discounted. We have a large number of coupons and limited time discounts waiting for you to receive, you can contact our customer service if you have any needs.

Q5: What's your minimum quantity? How to place order online?

A: Different products have different MOQ.  Please consult customer service for details.  You can click start order to place your order, or click send Inquiry/chat to contact our customer service for details.

Q6: What is the payment term?

A: Payment can be doneby Trade Assurance, T/T, L/C, Credit Card and more.  Please consult customer service for details.

Q7: What is the delivery time/ method?

A: We usually ship the goods within 1-7 working days after you make the payment.
We can express by door to door, by air, by sea, you can also choose your freight forwarder.

Q8: When can get the quotation ?

A: We usually make an offer within 24 hours after receiving your inquiry. If it's an urgent order, you can call us or mention it in the subject line of your email so we can give priority to reply it.

Q9: Can you develop a new product for us?

A: Yes, we can. We have independent R&D department. who is able to update the procedure parameters of our main products and develop the procedure of new product. For more information, please contact us directly.

Q10: Do you provide after-sales service?

A: We provide 7*24h service. We have a professional after-sales team to solve your problems, you are welcome to place an order.