HU-210 is structurally and pharmacologically similar to Δ9-tetrahydrocannabinol (Δ9-THC), the main active ingredient of marijuana, and it was synthesized around 1988. It was recently purported to be found in the herbal mixture "Spice", sold in European countries mainly via internet shops. HU-210 is a schedule I controlled substance in the U.S.
HU-210 is used in basic scientific research to identify cannabinoid receptors in the brain and study the mechanisms of action of Δ9-THC.
HU-210 [(6aR,10aR)-9-(hydroxymethyl)-6,6-dimethyl-3-(2-methyloctan-2-yl)-6a,7,10,10a-tetrahydrobenzo[c] chromen-1-ol]; (-)-11-OH-Δ8-THC-DMH; Chemical Abstract Service Number 112830-95-2) is categorized as a tetrahydrocannabinol (THC) and is similar in chemical structure to Δ9-THC,