... L Specification: Salicin 15%, 25%,50%,70% ,80%,98% Test Method: HPLC White Willow Bark Extract/Salicin/Salix alba L White Willow ... Ingredient: SalicinSpecification: Salicin 15%, 25%,50%,70% ,80%,98%Test Method: HPLC Molecular Formula: C13H18O7Molecular Weight: 286.27Suggested Applications: White Willow Bark ...