Inhibitor of fatty acid amide hydrolase (FAAH); pIC 50 = 4.89 for inhibition of [ 3 H]-anandamide metabolism. Displays little binding to CB 1 and CB 2 receptors (IC 50 > 100 μ M) and very weakly blocks anandamide uptake (IC 50 ~ 100 μ M). Inhibits proliferation of C6 glioma cells.