Sophora Japonica L.


Quercertin Dihydrate


CAS No.: 204-187-1

Molecular Formula: C15H14O9

Molecular Weight: 338.27

Specification: 95% HPLC, 98% UV

Quercertin Anhydrous


CAS No.: 117-39-5

Molecular Formula: C15H10O7

Molecular Weight: 302.23

Specification: 95% HPLC, 98% UV


Quercetin is a flavonoid widely distributed in nature. It is a potent antioxidant and has anti-inflammatory activity, protecting cellular structures and blood vessels from the damaging effects of free radicals.

It improves blood vessel strength. Quercetin inhibits the activity of catechol-0-methyltransferase that breaks down the neurotransmitter norepinephrine. This effect may lead to elevated levels of norepinephrine and an increase in energy expenditure and fat oxidation.



Assay≥95% HPLC, ≥98% UV
Partical SizePass 80 mesh
Sulphated Ash≤0.2%
Heavy Metals(as Pb)≤10ppm



Product Name Quercetin Anhydrous (Sophora Japonica Extract) Product Name Quercetin Dihydrate (Sophora Japonica Extract)
Botanical Source Sophora Japonica L Botanical Source Sophora Japonica L
Used Part Flower Buds Used Part Flower Buds
Code BPBE-601-C Code BPBE-601-A
Specification 95%(HPLC) Specification 95%(HPLC)
Appearance Yellow powder Appearance Yellow powder
Identification IR: Positive Identification IR: Positive
Melting Point 305°C~315°C Melting Point 305°C~315°C
Reducing Sugars Should be not detected Reducing Sugars Should be not detected
Sulfate ≤1000ppm Sulfate ≤1000ppm
Chloride ≤1000ppm Chloride ≤1000ppm
Bulk Density ≥0.10gm/cc Chloride ≤1000ppm
Loss on Drying ≤4.0% Water ≤12.0%
Sulphated Ash ≤0.5% Sulphated Ash ≤0.5%
Heavy Metals ≤10ppm Heavy Metals ≤10ppm
-As ≤1ppm -As ≤1ppm
-Pb ≤3ppm -Pb ≤3ppm
-Cd ≤1ppm -Cd ≤1ppm
-Hg ≤0.1ppm -Hg ≤0.1ppm
Assay(HPLC) ≥95.0% Assay(HPLC) ≥95.0%
Total Plate Count ≤1000cfu/g Total Plate Count ≤1000cfu/g
-Yeast&Mold ≤100cfu/g -Yeast&Mold ≤100cfu/g
-E.Coli Negative -E.Coli Negative
-Salmonella Negative -Salmonella Negative
-Coliforms ≤10cfu/g -Coliforms ≤10cfu/g


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