... Origin:Centella Asiatica (gotu kola)Part Used:Whole herb (dry)Extract Solvent:Ethonal CAS:84776-24-9; 84696-21-9 ItemsRequirementColorLight ... yellow powderAssay (HPLC)Total triterpenes ≥10%, 20%, 30%, 40%, 70%Loss on drying ... strong light and heat.Shelf Life: 24 months. Gotu Kola Extract 10%, 20%, 30%, 40%, 70% Total triterpenes; Centella Asiatica ...