the same two flavonols dispersed platelet thrombi which were adhering to the rabbit aortic endothelium in vitro ( ec50 for quercetin was 80 nm and for rutin 500 nm ) and prevented platelets from aggregation over blood-superfused collagen strip in vivo ( ed50 for quercetin was 5 nmol/kg and for rutin 33 nmol/kg i.v . ) .
C0060444
flavonols
C0034392
quercetin