– HUN86681, also known as 1-Hexadecyl-2-acetylphosphatidylcholine, is a lipid Platelet activating factor (PAF). PAF is an ether phospholipid known to exhibit potential biological activities in a variety of cellular phenomena such as platelet aggregation, chemotaxis, hypotension, bronchoconstriction, vascular permeability regulation, inflammation, glycogenesis and in regular cellular breakdown of phosphatidylinositol.