CP 55940

CP55940 (CP)

Created by Pfizer in 1974.

Agonist at both CB₁ and CB₂ receptors

CB1 Ki = 0.58nM
CB2 Ki = 0.68nM

Antagonist at GPR55 (CB3)


CP55940 is 45 times more potent than Δ⁹-THC, and is fully antagonized by rimonabant (SR141716A).