1'-Dimethyl-Δ9-THCH (1',1'-Dimethyl-Δ9-THCH) is a drug that is a cannabinoid agonist, and has been sold as a designer drug. It is closely related to Δ9-THCH but with two methyl groups added on to the hexyl chain at the carbon adjacent to the aromatic ring, and is also structurally similar to other potent cannabinoid drugs such as dimethylheptylpyran and HU-210. While 1',1'-dimethyl-Δ8-THCH is a known compound with established cannabinoid effects, the Δ9 isomer appears to be previously unreported. In 2025 it was detected and reported to the Public Health Agency of Sweden. It was added to the controlled drugs list in Hungary in 2026.
See also Δ8-THC-DMH (C6)-CP 47,497 2-Allyl-Δ8-THC-O-acetate 2-Cl-HHC Adamantyl-HHC AM-087 AMG-41 JWH-133 THC butanenitrile oxime
References