Complaint
What is Quercetin?
Quercetin is extracted from sophora japonica bud. Quercetin is green yellow powder with bitter taste,
slightly soluble in water, easily soluble in alkaline solvent.
Usually quercetin refers to quercetin dihydrate. Moisture of quercetin dihydrate is 8%-12%,
while it is less than 4% for quercetin anhydrous. The crystal water in the molecules of quercetin anhydrous has been removed.
Quercetin powder is used as an ingredient in dietary supplements, beverages, and foods.
Application
1. Quercetin powder is mainly used in oils, beverages, cold drinks and meat products.
2. Healthcare supplement.
COA
| Item | Specification | Result |
| Assay | 95.0%-101.5% | 0.952 |
| (Anhydrous substance) | ||
| Appearance | Yellow, crystalline powder | Conforms |
| Solubility | Practically insoluble in water,Soluble in aqueous alkaline sol. | Conforms |
| Loss on drying | ≤12.0% | 0.1095 |
| Sulphated ash | ≤0.5% | 0.0014 |
| Melting point | 305-315°C | 310-312°C |
| Total Heavy Metals | ≤10ppm | Conforms |
| Pb | ≤3.0ppm | Conforms |
| As | ≤2.0ppm | Conforms |
| Hg | ≤0.1ppm | Conforms |
| Cd | ≤1.0ppm | Conforms |
| Microbiological | ||
| Total Plate Count | ≤1000cfu/g | Conforms |
| Total Yeast & Mould | ≤100cfu/g | Conforms |
| E. Coli | Negative | Negative |
| Salmonella | Negative | |
Product Description
Product Name: | Quercetin Dihydrate / Quercetin Powder |
Botanical Source: | Sophora japonica L. Bark |
Spec./Purity: | Quercetin 98% Quercetin dihydrate 95%HPLC |
Appearance: | Green Yellow powder |
CAS No. | 117-39-5 |
Shelf Life: | 24 moths |
Package: | 25kg/Fiber Drum |
| OEM service | Capsules, small bags powder | |
| MOQ | 50 bottles | |
| Capsules each bottle | 30 caps or 60 caps | |
| Dose | 500 mg/capsule or customize |
We can provide OEM,ODM service with low MOQ!!
Hard capsules, soft capsules, sachets, tablets, tinctures, we can do all customize services with low MOQ!!
Our success stories
| Recommended transportation selections | ||
| By Express | By Air Transportation | By Sea Transportation |
| Suitable for sample order or <50kg Fast: 3-10 days High shipping cost Door to door service | Suitable for >50kg Fast: 3-7 days Lower than express cost Airport to airport service Professional broker needed | Suitable for > 300kg Slow: 7-45 days Lowest cost Port to port service Professional broker needed |
Xi'an Sheerherb Organic Biotechnology Co., Ltd. is located in Xi'an High-tech Economic Development Zone, specializing
in the production and export of pharmaceutical raw materials and intermediates, peptides, and cosmetic raw materials,
and has invested and closely cooperated with well-known domestic manufacturers and laboratories. We always adhere
to high starting point, high standard and high quality, and carry out strict management of production process and quality
control. All products must pass our quality test before being sent to customers. We do business with more than 100
countries, among which our main markets include Central and South America, Southeast Asia, Central Asia, Africa,
Middle East, Eastern Europe, Russia. We have been working closely with customers to provide products and solutions
that create value and competitive advantage, as well as meet customer needs with thoughtful service, and spare no effort
to create value for customers. We sincerely welcome new and old customers at home and abroad to contact us to create
future business relations and create brilliance together!
FAQ
Q1:Can i get some samples?
A: Yes, we can supply the free sample,but the shipping cost be paid by our customers.
Q2:How to start orders or make payments?
A: Proforma invoice will be sent first after confirmation of order, enclosed our bank information. Payment by T/T,Western Union or Paypa or secure payment
Q3:How to confirm the Product quality before place orders?
A:You can get free samples for some products, you only need to pay the shipping cost or arrange a courier to us and take the samples You can send us your product specifications and requests, we will manufacture the products according to your requests
Q4: how about delivery lead time?
A:Delivery lead time: About 2-5 days after payment confirmed.(Chinese holiday not included).garlic oil
Q5:Is there a discount?
A:Different quantity has different discount
