White former Hu Jiasu is a kind of natural compounds, has the function such as calcium ion antagonist, widely exists in umbrelliferae plant before white PeucedanumpraeruptorumDunn hu and other plants. Proleptin is a horn-type pyranocoumarin extracted from the root of Proleptin. It is the main active component of proleptin. It is white needle-like crystal, fat-soluble and easily soluble in organic solvents (refer to relevant literature)
