Tetrahydrocannabihexol(THCH) is currently the rarest cannabinoid to date, and also one of the newest. It is only found in the FM2 strain of hemp originating from Italy. It was isolated from the plant at concentrations under 0.1%, but can sometimes be quantified in cannabis smoke/vapor. This indicates that THCH may also be a product of combusting certain kinds of cannabis and hemp flowers, and may be present in some varieties of cannabis, albeit in miniscule quantities.

It has a light yellow-pink color and appears as a distillate(thick oil)at room temperature. There is no information about its vaporization temperature. Delta-8-THCH was not able to be identified in sample strains containing THCH, which could indicate that THCH is more stable and less likely to degrade from heat/sunlight when compared to THC.