Potent TRPV1 antagonist (IC50 = 3-9 nM). Blocks capsaicin-evoked currents in rat DRG neurons and inhibits TRPV1-activation by anandamide (Cat. No. 1339) and N-arachidonoyl-dopamine. Reduces pain in inflammatory, postoperative and osteoarthritic in vivo pain models. Purity 98%. MW (observed): 345.32