Hexahydrocannabinol on the Light Cannabis Market: The Latest "New" Entry.

Introduction: Hexahydrocannabinols (HHCs), referred to as (9 R )-HHC and (9 S )-HHC diastereoisomers, are poorly studied cannabinoids naturally found in small concentrations in the pollen and the seeds of the hemp plants. Aim: In this study, for the first time, we describe the finding of (9 R )-HHC and (9 S )-HHC in two commercialized hemp derived products. Methods: The achievement of reference standards by semisynthetic or isolation approach allows us to develop and validate a gas chromatography mass spectrometry method for the identification and quantification of HHCs in hemp-derived resin. Results: The two analyzed samples showed percentage of 42.5 and 41.5 for (9 R )-HHC and of 23.6 and 23.6 for (9 S )-HHC. Conclusions: Despite the lack of in-depth studies about HHCs activity, potency, toxicity, and safety, these cannabinoids are emerging on the light-cannabis (hemp) market probably because legislations still do not clearly regulate them. Since analytical assay for hemp-derived products usually include only Δ ⁹ -THC, THC-A, CBD, and CBD-A, a thorough investigation could be carried out to reveal the possible addition of "new" compounds that might be a matter of safety.