English name: alphitolic acid The test method: HPLC Chemical name: 2α-hydroxy-lup-20(29)-ene-28-oic acid CAS No.: 472-15-1 Molecular formula: C30H48O3 Relative molecular mass: 456.71 Origin: DaXingAnLing wild rose hip, and bark of silver birch. Effect: the betulic acid can kill melanocyte without destroying healthy cells, inhibit HIV-1 infection, brain tumor, neural ectoderm tumor, leukemia and other malignant cells. It is pentacyclictriterpenoid. The package: 2.5kg double aseptic food poly vacuum-bag inside, 25kg per carton or according to customer requirement.