Quercetin Dihydrate  CAS 6151-25-3

Appearance: Yellow fine powder

Assay (HPLC)     95%  --99%

Assay(UV)    98.0%  -102%

Sieve analysis       Characteristic:100%pass 80mesh

Residue on Ignition Bulk Density       less than 0.2% 45-55g/100ml

Extract Solvent     Ethanol and Water

Heavy Metals       less than 10ppm

As   less than 2ppm

Total Plate Count  less than 1000cfu/g

Yeast and Mold    less than 100cfu/g