Wikipedia
AB-PINACA
AB-PINACA is a compound that was first identified as a component of synthetic cannabis products in Japan in 2012.
It was originally developed by Pfizer in 2009 as an analgesic medication.
AB-PINACA acts as a potent agonist for the CB receptor (K = 2.87 nM, EC = 1.2 nM) and CB receptor (K = 0.88 nM, EC = 2.5 nM) and fully substitutes for Δ-THC in rat discrimination studies, while being 1.5x more potent.