Cannabinoids () are compounds found in cannabis. The most notable cannabinoid is the phytocannabinoid tetrahydrocannabinol (THC) (Delta9-THC or Delta8-THC), the primary psychoactive compound in cannabis. Cannabidiol (CBD) is another major constituent of the plant. At least 113 distinct cannabinoids have been isolated from cannabis.Classical cannabinoids are structurally related to THC.
Nonclassical cannabinoids (cannabimimetics) include aminoalkylindoles, 1,5-diarylpyrazoles, quinolines, and arylsulfonamides as well as eicosanoids related to endocannabinoids.