CP 55,244 is a chemical compound which is a cannabinoid receptor agonist. It has analgesic effects and is used in scientific research. It is an extremely potent CB1 full agonist with a Ki of 0.21 nM, making it more potent than the commonly used full agonist HU-210.
^Griffin, Graeme; Wray, Emma J.; Martin, Billy R.; Abood, Mary E. (1999). "Cannabinoid agonists and antagonists discriminated by receptor binding in rat cerebellum". British Journal of Pharmacology. 128 (3): 684–688. doi:10.1038/sj.bjp.0702806.