... [Molecular Weight] 414.62[Assay Method] HPLC[Appearance] White powder What is Wild Yam?Dioscorea villosa is a species of ... pregnenolone, progesterone, and other steroid products.The glycoside dioscin from the Mexican wild yam root, Dioscorea, constituted the first ... in cool dry place,avoid sunlight and high temperature3W Botanical Extract Inc.Rm.C401, Bldg.1, Changsha International Enterprise Center, ...