Herbal Extract 98% Quercetin, Sophora Japonica Extract

• Certification: ISO, FDA
• Application: Beauty, Medicinal, Edible
• Form: Powder
• Part: Flower
• Shelf Life: 2 Years
• Test Method: UV/HPLC
• Model NO.: TR51
• Color: Brown Fine Powder
• Brand: Tianrui
• Packaging Material: Plastic
• Storage Method: Normal
• Extraction Process: Physical
• Raw Material: Plants
• Transport Package: 25kg Per Drum with Plstic Bag
• Specification: ISO
• Trademark: TR
• Origin: Xi′an
• Production Capacity: 30t/Month

Product Description

 
Basic Informations:
 
Product Name: Quercetin
Latin Name:Sophora japonica
Orgin:the buds of sophora japonica L.
Active Ingredients:Rutin
Appearance:Light yellow crystalline powder
Specification:95%,98% Rutin by HPLC
Extract Method:Grain alcohol
Testing Method:HPLC
Molecular Formula:C17H30O16
Molecular Weight:610.51
Melting Point:176-1780
Synonyms:Rutoside,quercetin-3-rutinoside and sophorin



Descriptions:
 
Quercetin is a flavonoid widely distributed in nature. The name has been used since 1857, and is derived from quercetum(oak forest), after Quercus.[3][4] It is a naturally occurring polar auxin transport inhibitor.

 
Specifications:
 
 

Item	Specification	Result
Assay (Anhydrous substance)	95.0%-101.5%	95.2%
Appearance	Yellow, crystalline powder	Conforms
Solubility	Practically insoluble in water, Soluble in aqueous alkaline sol.	Conforms
Loss on drying	≤12.0%	10.95%
Sulphated ash	≤0.5%	0.14%
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	Negative

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