JWH-057, also known as deoxy-Δ8-THC-DMH, is a selective cannabinoid ligand, with a binding affinity of Ki = 2.9 ± 1.6 nM for the CB2 subtype, and Ki = 23 ± 7 nM for CB1.[1]
^Huffman JW, Yu S, Showalter V, Abood ME, Wiley JL, Compton DR, et al. (September 1996). "Synthesis and pharmacology of a very potent cannabinoid lacking a phenolic hydroxyl with high affinity for the CB2 receptor". Journal of Medicinal Chemistry. 39 (20): 3875–7. doi:10.1021/JM960394Y. PMID8831752.