Delta-10-THC
Delta-10-THC at a glance
Naturally occurring
Psychoactive
Cannabinoid type
Discovery year
Also known as
Molecular formula
C21H30O2
CB1 receptor interaction
CB2 receptor interaction
What is Delta-10-THC?
Delta-10-THC is a semi-synthetic cannabinoid and positional isomer of Delta-9-THC. Its natural occurrence in cannabis has not been conclusively established, and commercial Delta-10-THC is produced through chemical conversion of other cannabinoids. It is generally considered around 0.3 to 0.5× as psychoactively potent as Delta-9-THC, although human evidence remains very limited.
Delta-10-THC has the same five-carbon (pentyl) side chain and molecular formula as Delta-9-THC, but the position of one double bond is shifted within the THC ring structure. Two commonly studied forms are the 9R and 9S epimers, also known as cis- and trans-Delta-10-THC, which differ in their three-dimensional structure and biological activity.
Commercial Delta-10-THC is generally produced by isomerisation of hemp-derived cannabinoids and supplied as a viscous distillate. Pure Delta-10-THC is difficult to produce selectively, so commercial material may contain other THC isomers if purification is incomplete. Detailed compound-specific information about its long-term stability and degradation remains limited.
Delta-10-THC was first investigated synthetically in the 1980s but remained largely obscure until it entered the commercial cannabinoid market around 2020. Interest grew alongside other hemp-derived THC isomers, particularly because of its structural similarity to Delta-9-THC and comparatively mild reported psychoactive effects. Scientific research remains limited, especially regarding human effects, safety and pharmacokinetics.
How Delta-10-THC works in the human body
Delta-10-THC is not known to be naturally produced in the human body. Laboratory evidence indicates that it can bind to CB1, but unlike Delta-9-THC it did not activate CB1 in the tested functional assay and instead antagonised receptor activation. Human liver-cell research shows metabolite conversion, but the biological activity of its metabolites is unknown.
CB1 receptor
The main cannabinoid receptor in the brain, responsible for THC’s intoxicating effects. Receptor binding research found that trans-Delta-10-THC binds CB1 with approximately 14x weaker affinity than Delta-9-THC, while cis-Delta-10-THC binds approximately 140x weaker. This shows that both forms can occupy the CB1 receptor, but trans-Delta-10-THC binds substantially more strongly than the cis form and both bind considerably weaker than Delta-9-THC.
Despite this binding, neither trans- oor cis-Delta-10-THC showed measurable CB1 agonist activity at concentrations up to 10,000 nM in the assay. Instead, both forms blocked CB1 activation produced by another strong cannabinoid agonist, classifying them as CB1 antagonists. Trans-Delta-10-THC showed stronger antagonist activity than the cis form.
This distinction between binding and functional activity is important. Delta-10-THC can bind to the CB1 receptor without producing the receptor activation normally associated with Delta-9-THC. The available laboratory data therefore do not currently provide a clear CB1-based explanation for the psychoactive effects sometimes attributed to Delta-10-THC.
These findings come from cell-based receptor experiments and have not yet been confirmed in controlled human studies. It therefore remains unknown whether Delta-10-THC behaves as a CB1 antagonist in the human body at realistic concentrations, or whether additional mechanisms contribute to its reported effects.
CB2 receptor
The main cannabinoid receptor in the immune system, involved in regulating immune cell activity and inflammatory responses. Laboratory testing found no measurable CB2 agonist or antagonist activity up to 10,000 nM for the tested Delta-10-THC forms. Therefore, specific immune or inflammatory effects through CB2 are not currently supported by direct evidence.
Metabolism
Human liver-cell research found that Delta-10-THC is extensively converted into Delta-10-THC glucuronide and monohydroxylated metabolites. The exact hydroxylation position has not yet been confirmed, and whether any metabolite is pharmacologically active remains unknown.
Human safety status
Poison control data found mild central nervous system depression, rapid heartbeat and occasional confusion following recreational Delta-10-THC exposure, but most reported effects followed a usage of a mix of different cannabinoids which makes it unsure if this was caused by Delta-10-THC. No controlled human studies exist, and available safety data come mainly from poison center reports and general cannabinoid vaping toxicity research, leaving long-term effects unestablished.
Delta-10-THC interactions with other compounds
Important disclaimer
This information is provided for educational and technical reference only. Interaction data can change as new research becomes available and may be incomplete or outdated. The real relevance of any interaction depends strongly on dose, route of administration, timing, formulation and individual metabolism. Readers should do their own research and consult a qualified healthcare professional before making decisions involving medicines, alcohol, nicotine, cannabinoids or other compounds. Elementra's products and information are intended for research, production and technical use only and are not intended for human consumption.
No Known Interactions Identified
Current Evidence
Limited Data
No sufficiently supported specific interactions between Delta-10-THC and other cannabinoids, common substances or medicines have currently been identified. Delta-10-THC has demonstrated CB1 antagonist activity in laboratory research, but this is a property of Delta-10-THC itself rather than evidence of a specific compound-to-compound interaction. This should not be interpreted as Delta-10-THC having no interactions. Interactions may exist, but they have not yet been identified or characterized by research.
This content does not constitute advice
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