1-Linoleoyl Glycerol (Monolinolein), isolated from Saururus chinensis roots, is a chiral glycerol monoester. Its (R)- and (S)-enantiomers act as inhibitors of Lipoprotein-associated phospholipase A2 (Lp-PLA2), exhibiting IC50 values of 45.0 μM and 52.0 μM, respectively. This compound is utilized in biochemical research to study Lp-PLA2's role in inflammation and vascular diseases.