Quercetin dihydrate
CAS No.: 6151-25-3
Product Name: Quercetin dihydrate
CAS#6151-25-3
Package: 25kg/drum
Delivery time: in stock for prompt shipment.
Dangerous goods or not: Not
Country of origin: China
CAS#6151-25-3
Package: 25kg/drum
Delivery time: in stock for prompt shipment.
Dangerous goods or not: Not
Country of origin: China
Description
Spec of Quercetin dihydrate :
| Items | Specification | Results |
| Appearance | Yellow, crystalline powder | Yellow, crystalline powder |
| Solubility | Practically insoluble in waterSoluble in aqueous alkaline sol. | Complies |
| Melting point | 305-315℃ | Complies |
| Identication | A,B,C | Complies |
| Loss on drying | 9.0 ~12.0% | 10.02% |
| Sulphated ash | ≤0.5% | 0.19% |
| Heavy Metal | ≤20PPM | <20PPM |
| Assay (HPLC) | ≥95% | 97.15 % |
| Particle size | 100% pass through Sieve# 80Mesh | Complies |
| Total plate count | ≤1000CFU/g | 130CFU/g |
| Yeasts and molds | ≤100CFU/g | 20CFU/g |
| Escherichia .Coli | Absence in 1g | Absence |
| Salmonellae | Absence in 10g | Absence |
| Staph aureus | Absence in 1g | Absence |
