2-Linoleoyl glycerol (2-Monolinolein; 2-Monolinoleoylglycerol) is a monoacylglycerol that is an antagonist and partial agonist at the type 1 cannabinoid CB1 receptor. The potency of 2-Linoleoyl glycerol can be enhanced by JZL195 (HY-15250), an inhibitor of FAAH and MAGL, and inhibited by the CB1 antagonist AM251 (HY-15443) and Cannabidiol. As a CB1 antagonist, 2-Linoleoyl glycerol does not enhance, but only attenuates, the activity of the CB1/CB2 receptor ligands cannabinoids (AEA) and 2-arachidonoylglycerol (2-AG)^[1][2].