... 1,CAS# 113274-56-9 2,Appearance: White powder 3,Molecular Formula :C66H93N13O25 4,pure Natural Hirudin ... fine powder CAS #.:113274-56-9function of product:1,Increase myocardial nutritional blood flow ,descend blood fat, 2,keep the original ... blood circulation, remove saprophytic 3, improvement of microcirculation, enhanced metabolism animal extract of Hirudin powder