China H&Z® Quercetin Factory
Quercetin CAS:117-39-5
Quercetin Specification
Assay: HPLC:≥95%/UV:≥98%,HPLC:≥97%
Heavy Metal:<10ppm
Appearance:Yellow Fine Powder
Odor:Characteristic
Particle Size:100% pass 80 mesh
Loss On Drying:≤9-12%
Sulphated Ash:<0.5%
Total Of Bacteria:<1000cfu/g
Fungi:<100cfu/g
Salmonella:Negative
Coli:Negative
Storage:Store in cool & dry place,Do not freeze,Keep away from strong light and heat.
Quercetin Chemical Properties
MF:C15H10O7 ,MW:302.24
Melting point :314-317°C
Boiling point :363.28°C (rough estimate)
Density :1.3616 (rough estimate)
Refractive index :1.4790 (estimate)
Water Solubility :<0.1 g/100 mL at 21 ºC