Hydroxytyrosol Powder Hydroxytyrosol is a phenylethanoid, a type of phenolic phytochemical, extracted from olive leaves. It is odorless powder, soluble in methanol and DMSO, insoluble in petroleum ether, diethyl ether or chloroform. Certificate of Analysis for Hydroxytyrosol Powder Botanical Name Olea Europaea L. Part Used Leaf Item Standard Test Results Test Method Assay Oleuropein 鈮?0.00% 20.63% HPLC Physical & Chemical Appearance light Yellow Powder Complies Visual Odor Characteristic Characteristic Organoleptic Particle Size 98% through 80mesh Complies USP36 Extraction Solvent Ethanol & Water Complies ------ Loss on Drying 鈮?.00% 3.21% AOAC 930.15 Ash 鈮?.00% 3.08% 2g/525鈩?3hrs Heavy Metal As 鈮?.0ppm Complies ICP-MS Pb 鈮?.0ppm Complies ICP-MS Cd 鈮?.5ppm Complies ICP-MS Hg 鈮?.1ppm Complies ICP-MS Microbiological Test Total Plate Count 鈮?000cfu/g Complies AOAC Mold and Yeast 鈮?00cfu/g Complies AOAC Coliform 鈮?0cfu/g