草本药物一级标准品，均经色谱和NMR双重方法测定组分含量，水份含量（Karl Fishcer方法测定）和溶剂残留都经测定并严格控制，确保证书上各指标高度可靠。 


Quercetin dihydrate
primary reference standard


Description
Application Reference standard in the analysis of herbal medicinal products.
General description Produced and qualified by HWI Analytik
Exact content by quantitative NMR can be found on the certificate
Biochem/physiol Actions Quercetin dihydrate is a flavonoid with anticancer activity. Quercetin is a mitochondrial ATPase and phosphodiesterase inhibitor. It Inhibits PI3-kinase activity and slightly inhibits PIP kinase activity. Quercetin has antiproliferative effects on cancer cell lines, reduces cancer cell growth via type II estrogen receptors, and arrests human leukemic T cells in late G1 phase of the cell cycle.



Properties
grade primary reference standard
CofA certificate is enclosed in each package
mp >300 °C(lit.)



Safety
Symbol GHS06
Signal word Danger
Hazard statements H301
Precautionary statements P301 + P310
WGK Germany 3
RTECS LK8950000