1. A strong scientific research team .
2. Stable quality (with a complete scientific research center and testing center to ensure the quality stability of each batch of products).
3. Rich export experience (with practical experience in exporting to more than 30 countries such as North America, Europe, Middle East, and Southeast Asia).
4. Professional pre-sales and after-sales services (customer first is the core belief of our sales team).
5. Ability to provide value-added services (we can provide a wealth of product solutions to help customers improve competitiveness and production.

6. Safe and fast delivery Most products have a large inventory, so the products can be sent fast after confirming payment, and the tracking number and packaging details will be notified as soon as possible; Large amount of our products are exported to many countries, such as Germany, Brazil, the United States, Spain, the United Kingdom, France, Canada, Mexico, Poland, Russia, Australia, Norway, Finland and so on, with more than 1000 kg per month. We have cooperative agents in these countries. Our customs clearance company will clear your package without customs problems.
7. Rich experience
We are a professional manufacturer of pharmaceutical chemical raw materials. We have focused on this field for many years, and our product is BP / USP / EP / enterprise standard. We guarantee all purity > 99%. High purity and good quality are one of the greatest secrets of our success; You can get the best quality and service from us

Usages: 

Pharmaceutical API

Riboflavin is an easily absorbed micronutrient with a key role in maintaining health in humans and other animals.Target: OthersRiboflavin (vitamin B2) is the direct precursor of redox enzyme cofactors flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD), which are essential for multiple cell physiology [1]. Urinary excretion of riboflavin contributes to one-half of the overall removal of riboflavin from plasma. No sex differences were observed for any of the pharmacokinetic variables (P > 0.05) [2]. Riboflavin, similar to other vitamins of the B complex, presents anti-inflammatory activity but its full characterization has not yet been carried out. Riboflavin (25, 50 or 100 mg/kg, i.p.), administered immediately and 2 h after the injection of carrageenan, induced antiedema and antinociceptive effects. The antinociceptive effect was not inhibited by the pretreatment with cadmium sulfate (1 mg/kg), an inhibitor of flavokinase. Riboflavin (50 or 100 mg/kg, i.p., 0 and 2 h) also inhibited the fever induced by lipopolysaccharide (LPS) in rats. Riboflavin is a safe drug, is approved for clinical use and exacerbates the antinociceptive effect of morphine, may warrant clinical trials to assess its potential in the treatment of different painful or inflammatory conditions [3].

About Us:

Hebei Kunsui Technology Co., Ltd. specializes in exporting high quality Pharmaceutical raw materials, plant extract, pesticide raw materials  and Chemical raw materials.
Our products are produced on the basis of best technical team, advanced equipment, high qualified management which meet the requirements of security and environmental protection. We earned customer trust and created a good reputation during these years.

Packing & Shipping:

Packing&Delivery:
Packing and Storage: Packed in double plastic bags inside, outside with 25kg Fiber Drum.
Drum Size: 40cm*40cm*50mm, 25KG/drum Nt.;27.5Kg/drum.Gt. Store in a well-closed container away from moisture.
Shelf Life: 2 years if sealed and store away from direct sun light.
Storage: Stored in a clean, cool, dry area; keep away from moisture and strong, direct light/heat.
Delivery time: Around 3 workdays after your payment.
Payments:We accept BTC//USDT/Bank transfer.

Shipping Details: 
  1. We ship goods via DHL, Fedex, UPS, TNT, China post, NL Post and other couriers, weight from 10g to 1000kg or even bulker. 
  2. Shipping details & shipping documents will be provided and sent by email. 
  3. We keep tracking the shippment until clients well received. 
  4. After years export shipping experience, with professional and experienced cooperated forwarders, we ensure that goods can be delivered in multiple ways safetly and efficiently. 

FAQ:

Q: Is there a discount.

Yes, for larger quantity, we always support with better price.

Q2: Can I have free samples

Yes, we can supply the free 10-20g sample except high value products, but the shipping cost be paid by you. Generally USD45 for sample fee.

Q3: How do I pay the sample fee

Paypal,,T/T or just provide your courier's account number, we prefer FEDEX.

Q4: How do you treat quality complaint

If quality problem caused by us after Third Party Test, we will send you free goods for replacement or refund your payment.

Q5:What's your MOQ and lead time

Generally MOQ is 1kg, some low value products, MOQ is 25kg and lead time is within 4-5 workdays upon your payment.

Q6: Which products you can export

We are mainly exporting herbal extracts, amino acids, vitamins, cosmetics and APIs.

Q7: Which documents you can provide

Usually, we provide Commercial Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your
markets have any special requirements, let us know.