5F Cumyl PINACA in 'e liquids' for electronic cigarettes: comprehensive characterization of a new type of synthetic cannabinoid in a trendy product including investigations on the in vitro and in vivo phase I metabolism of Competition curves of specific [3H] CP 55940 binding by AKB48 and Download Scientific Diagram Metabolism, CB1 cannabinoid receptor binding and in vivo activity of synthetic cannabinoid 5F AKB48: Implications for toxicity ScienceDirect Frontiers Pharmacological and Behavioral Effects of the Synthetic Cannabinoid AKB48 in Rats