9-Hydroxyhexahydrocannabinol (9-OH-HHC) is a semi-synthetic derivative of tetrahydrocannabinol. It is formed as an impurity in the synthesis of Delta-8-THC, and retains activity in animal studies though with only around 1/10 the potency of Δ9-THC, with the 9α- and 9β- enantiomers having around the same potency.
See also 8-Hydroxyhexahydrocannabinol 9-Nor-9β-hydroxyhexahydrocannabinol 11-Hydroxyhexahydrocannabinol 11-Hydroxy-THC 11-Hydroxy-Delta-8-THC Cannabicitran Cannabitriol Delta-10-THC Hexahydrocannabinol
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