Pingyu Yimeikang Plant Technology Co., Ltd.






















Quercetin

Name: Quercetin
CAS#: 6151-25-3
Botanical Source: Sophora Japonica
Specification: HPLC 95%, HPLC 98%, Dihydrate, Anhydrous, Powder or Granule
Function & Application: Quercetin has good expectorant and antitussive effects, it also reduces the blood pressure, enhances capillary immunity, reduces capillary fragility, lowers blood lipids, expands coronary arteries, and increases coronary blood flow. 

TEST ITEM STANDARD RESULT
Appearance Yellow powder Complies (Visual)
Melting point 305-315℃ Complies(Melting point apparatus)
Identification Must Positive Complies
Solubility    
 - in water Soluble slightly Complies
 - in methanol Soluble freely Complies
 - in alkaline solutions Soluble freely Complies
 - in acetic glacial acid Soluble freely Complies
Loss on drying 9.0%---12.0% Complies
Residue on ignition ≤0.5% Complies
Mesh size 100% pass 100 mesh Complies
Assay ≥95% 96.5%/99.2% (HPLC/UV)
HEAVY METAL STANDARD RESULT(ICP-MS)
Lead ≤3ppm Complies
Cadmium ≤1ppm Complies
Mercury ≤0.1ppm Complies
Arsenic ≤1ppm Complies
MICROBIOLOGICAL TEST STANDARD RESULT
Total microbial count ≤1000cfu/g Complies
Yeast & mold ≤100cfu/g Complies
E.Coli Negative Negative
Salmonella Negative Negative

Packaging: The usual packaging is 25kg net carton drum or box with a polyethylene bag in side.
Storage: Preserve in well closed,light resistant and dry environment.
For more information, please contact: sales@yimeikangherb.com



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