Quercetin is widely present in the stem bark, flowers, leaves, buds, seeds and fruits of many plants, mostly in the form of glycosides.

Quercetin can scavenge free radicals in the body, anti-inflammatory, etc., and improve immunity.

Our quercetin and quercetin dihydrate is isolated and extracted from Sophora japonica with a purity of 98%. which can be used in medicine, health care, cosmetics, food additives.

Product Name:	Quercetin
CAS No.:	117-39-5	EINECS Number:	204-187-1
Molecular formula:	C15H10O7	Melting point:	314-317℃
Boiling point:	642.4oCat 760 mmHg	Refractive index:	1.767
Density:	1.799	Water solubility:	slightly soluble in water, easily soluble in alkaline aqueous solution.

Benefits of Quercetin

1. Fighting free radicals

Quercetin has antioxidant properties.

2. Reducing inflammation

3. Reducing the risk of cancer

4. Preventing neurological diseases

5. Relieving allergy symptoms

6. Preventing infections

7. Reducing the risk of heart disease

8. Lowering high blood pressure

Product Information
Product Name: Quercetin	Botanical Source: Sophora Japonica L.

Analysis	Specification	Result	Test method
Physical Description
Appearance	Yellow, crystalline powder	Complies	Visual
Odor	Characteristic	Characteristic	Organoleptic
Melting point	305-315℃	310℃	/
Particle size	100% pass 100 mesh	Complies	100 Mesh Screen
Solubility	Practically insoluble in water	Complies	/
	Soluble in aqueous alkaline sol.	Complies	/
Chemical Tests
Identification	Must Positive	Positive	/
Assay ( Quercetin )	95.0% Min	95.32%	HPLC
Loss on drying	8-12%	9.97%	5g/105℃/2hrs
Sulphated Ash content	0.5% Max	0.34%	2g/525℃/3hrs
Heavy metals	10.0ppm Max	Complies	AAS
As	2.0ppm Max	Complies	AAS
Pb, Cd	1.0ppm Max	Complies	AAS
Hg	0.1ppm Max	Complies	AAS
Microbiology Control
Total plate count	1,000cfu/g Max	Complies	AOAC
Yeast & Mold	100cfu/g Max	Complies	AOAC
E. Coli	Absent	Absent	AOAC
Staphylocossue Aureus	Absent	Absent	AOAC
Pseudomonas aeruginosa	Absent	Absent	AOAC
Conclusion	Complies with the standards.
General Status	Non-GMO, ISO Certificated.
Packing and Storage
Packing: Pack in paper-carton and two plastic-bags inside.
Shelf life: 2 year when properly stored.
Storage: Store in a well-closed place with constant low temperature and no direct sun light.

1kg aluminum foil bag

5-10kg carton

25kg cardboard drum or iron drum

Or packaged according to customer requirements

Packing

Express(3-8 days)	DHL/TNT/Fedex
By Air(8-15 days)	To airport only,customer deal with customs clearance in destination airport ;Suitable for large quantity like 50kg to hundreds of kgs
Door to door(8-15days)	most efficient way under 100kg Special line service
By Sea(20-40 days)	To seaport only,customer deal with customs clearance in destination seaport; Suitable for large goods,hundreds of kgs to container;Cheaper but longer time.

OEM	Specification
Subcontract	100g 200g 250g 300g (Any other size also support customization)
Capsule	500mg 600mg (Any other size also support customization)
Tablets	100mg 500mg 750mg 1000mg (Any other size also support customization)