Medicine Grade Quercetin powder 95%HPLC 98%UV 1.Assay(HPLC):>=95% Assay(UV):>=98% 2.yellow powder Medicine Grade Quercetin powder 95%HPLC 1.Description:1).Herb Source: Sephora japonica L2).Part of herb used: Flos sophorate bud3).CAS NO: 6151-25-34).Function: It can remove phlegm,stop cough and relive asthma.Besides,it can decrease blood pressure,the brittleness of capillary vessel and blood fat, ...