CB2 receptor agonist. Displays 4-fold higher affinity for the human CB2 receptor than the human CB1 receptor (Ki values are 43.3 and 162.4 nM respectively); shows 70-fold affinity for the rat CB2 receptor over the rat CB1 receptor (Ki values are 16.3 and 1130 nM respectively). Attenuates tactile allodynia in a rat model; does not affect rat locomotor activity.