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psx:substance/tetrahydrocannabiphorol/claim/519f4850-429b-41dc-97c0-cbc1749c358d

claim2026-05-11recordsupported

feeds · downstream

Closure of psx:substance/tetrahydrocannabiphorol/claim/519f4850-429b-41dc-97c0-cbc1749c358d: 49 upstream, 66 downstream.

psx:substance/tetrahydrocannabiphorol/claim/519f4850-429b-41dc-97c0-cbc1749c358d
├─ used  src/doi:10.1007/s00204-024-03769-4  Investigation of the intrinsic cannabinoid activity of hemp-derived and semisynthetic cannabinoids with β-arrestin2 recruitment assays - and how this matters for the harm potential of seized drugs
  ├─ informed_by  claim/e1ef023c-5f27-490a-8cca-89194907445f  Claim in receptor-pharmacology — inconclusive  working
  ├─ informed_by  claim/6b7d9f80-0303-4f62-a0f8-447ffe20ae17  Claim in receptor-pharmacology — inconclusive  working
    ├─ used  src/doi:10.1038/s41598-019-56785-1  A novel phytocannabinoid isolated from Cannabis sativa L. with an in vivo cannabimimetic activity higher than Δ9-tetrahydrocannabinol: Δ9-Tetrahydrocannabiphorol
    ├─ used  src/doi:10.3390/psychoactives3040030  The Identification of Synthetic Impurities in a Vape Pen Containing Δ9-Tetrahydrocannabiphorol Using Gas Chromatography Coupled with Mass Spectrometry
    ├─ used  src/doi:10.1186/s42238-024-00226-y  An emerging trend in Novel Psychoactive Substances (NPSs): designer THC
    ├─ used  src/doi:10.3389/fnbeh.2011.00060  Beyond THC: The New Generation of Cannabinoid Designer Drugs
    ├─ used  src/doi:10.2344/25-0009  Marijuana Use and Its Impact on Outpatient Anesthesia.
    ├─ used  src/doi:10.1038/s41598-020-79042-2  Identification of a new cannabidiol n-hexyl homolog in a medicinal cannabis variety with an antinociceptive activity in mice: cannabidihexol
    ├─ used  src/doi:10.1016/j.jpba.2025.116836  Single trichome phytocannabinomics of two different cannabis varieties
    ├─ used  src/doi:10.1080/00365513.2024.2340039  Appearance of hexahydrocannabinols as recreational drugs and implications for cannabis drug testing - focus on HHC, HHC-P, HHC-O and HHC-H
    ├─ used  src/doi:10.1111/1556-4029.15631  Emergence of semi-synthetic cannabinoids in cannabis products seized in Eastern Denmark over a 6-year period
    ├─ used  src/doi:10.1159/000536339  Cannabidiol-Derived Cannabinoids: The Unregulated Designer Drug Market Following the 2018 Farm Bill
    ├─ used  src/doi:10.1016/j.jchromb.2023.123682  Enantioseparation of chiral phytocannabinoids in medicinal cannabis
    ├─ used  src/doi:10.1016/j.tplants.2020.05.005  Phytocannabinoids: Origins and Biosynthesis
    ├─ used  src/doi:10.3109/03602532.2013.849268  Exogenous cannabinoids as substrates, inhibitors, and inducers of human drug metabolizing enzymes: a systematic review.
    ├─ used  src/doi:10.1002/dta.3740  Human metabolism of the semi-synthetic cannabinoids hexahydrocannabinol, hexahydrocannabiphorol and their acetates using hepatocytes and urine samples
    ├─ used  src/doi:10.1002/dta.3871  Identification of Hexahydrocannabiphorol Metabolites in Human Urine
    ├─ used  src/doi:10.3390/ijms25147724  CBD Versus CBDP: Comparing In Vitro Receptor-Binding Activities
    ├─ used  src/doi:10.1093/jat/bkae036  Cross-reactivity of 24 cannabinoids and metabolites in blood using the Immunalysis Cannabinoids Direct enzyme-linked immunosorbent assay
    ├─ used  src/doi:10.1093/jat/bkaf023  Comprehensive LC-MS-MS analysis of THC isomers, analogs, homologs, and metabolites in blood and urine
    ├─ used  src/doi:10.1093/jat/bkaf095  Rapid LC-QTOF-MS screening method for semi-synthetic cannabinoids in whole blood
    ├─ used  src/doi:10.1097/JCP.0000000000001089
    ├─ used  src/doi:10.1002/dta.3750  In vitro activation of the CB1 receptor by the semi-synthetic cannabinoids hexahydrocannabinol (HHC), hexahydrocannabinol acetate (HHC-O) and hexahydrocannabiphorol (HHC-P)
    ├─ used  src/doi:10.1001/jamapsychiatry.2020.1035  Association of High-Potency Cannabis Use With Mental Health and Substance Use in Adolescence
    ├─ used  src/doi:10.1038/s41398-022-02112-8  Rates and correlates of cannabis-associated psychotic symptoms in over 230,000 people who use cannabis
    ├─ used  src/doi:10.1177/02698811251399593  Evidence-based consensus guidelines for the pharmacological management of substance dependence: Recommendations from the British Association for Psychopharmacology
    ├─ derived_from  gen/8c54c127-1a85-4890-93f7-a0d5c81188bc  Generation — pipeline-v5
    ├─ generated_by  pub/081ce4c5-f20a-48fe-ba0e-5e0bc3448d5f  Publication — backfill
    ├─ invalidated_by  pub/efd22f69-d312-4614-a706-c60446b1234a  Publication — publish
      ├─ used  search/6cd9ce79-d416-435a-8e88-98cf5a9113f5  Searched PubChem for "tetrahydrocannabiphorol"
      ├─ used  search/01540056-b916-44ca-8ff2-06a371e443f6  Searched PubMed for "tetrahydrocannabiphorol THCP cannabinoid pharmacology"
      ├─ used  search/ae3ee022-dc8f-4ba3-a8d5-1b6c5c74243c  Searched OpenAlex for "tetrahydrocannabiphorol THCP"
      ├─ used  search/c2687808-bafa-4527-8267-701d955e58c8  Searched PubMed for "THCP tetrahydrocannabiphorol metabolism toxicology forensic"
      ├─ used  search/f952426d-6f49-4e37-9ccd-481daafe2b75  Searched ClinicalTrials.gov for "tetrahydrocannabiphorol THCP"
      ├─ used  search/e3c7ffb3-5000-4fb4-94e1-0a786260201d  Searched OpenAlex for "THCP tetrahydrocannabiphorol legal scheduling emerging cannabinoid"
      ├─ used  search/9ee454a8-c886-4f69-af69-f1f7ef0a11a1  Searched PubMed for "Citti cannabinoid phytocannabinoid Cannabis sativa isolation"
      ├─ used  search/8024ba2b-9c4a-4aa2-a856-92069d08955a  Searched PubMed for "PMID 37269160, 38894658, 38804224"
      ├─ used  search/6a5a64e6-a883-4509-bbfd-d11d4f33fae2  Searched WebSearch for "THCP tetrahydrocannabiphorol legal status DEA scheduling United States 2024 2025"
      ├─ used  search/b78aded2-4e3b-4e56-8d83-c1af8843379a  Searched WebSearch for "THCP tetrahydrocannabiphorol legal status UK Europe Australia scheduling 2024"
      ├─ used  search/8dd3fe3a-a5de-4bcc-a90e-2177f837c10a  Searched WebFetch
      ├─ used  search/5dd08235-5ebe-4986-87be-05cf77f38f2d  Searched Crossref via verify_doi for "10.3390/psychoactives3040030"
      ├─ used  search/844d5de6-0c17-4770-b889-8c06fe8a1ee6  Searched OpenAlex for "THCP tetrahydrocannabiphorol drug testing immunoassay forensic toxicology"
      ├─ used  search/3553674f-7803-4116-9945-83c5acad3e6c  Searched PubMed for "cannabinoid use disorder cannabis dependence withdrawal clinical"
      ├─ used  search/467973b2-f38d-4a18-87af-b25b554d38bd  Searched WebSearch for "THCP tetrahydrocannabiphorol CB2 receptor binding Ki potency compared THC"
      ├─ used  search/e667de63-ba51-4dc3-a49d-05b9c4cf197d  Searched Multiple sources for "THCP data synthesis across all findings"
      ├─ invalidated_by  issue/info_card@1722db9f7bf2  Issued info_card
      ├─ invalidated_by  issue/emergency@7386375eac13  Issued emergency
      └─ attributed_to  human/reviewer:agent-psx
├─ informed_by  section/receptor-pharmacology.full@1
  ├─ used  version/1  Revision 1
  ├─ used  claim/33e12336-c3d9-48cf-8ac6-59f161942c59  Claim in summary — inconclusive  working
  ├─ used  claim/5f79e9ca-f823-4761-a79f-af1b968fcb42  Claim in pharmacology — inconclusive  working
  ├─ used  claim/7aae71c9-894b-4217-964e-6c3a3ceade26  Claim in pharmacology — supported
  ├─ used  claim/3dfa3a29-3e4f-4777-b486-69171e3aa86e  Claim in receptor-pharmacology — supported
    ├─ derived_from  issue/notice@be4a9d59ca14  Issued notice
    ├─ derived_from  issue/info_card@e233c2ca52a1  Issued info_card
    ├─ derived_from  issue/emergency@207cf682e28a  Issued emergency
    ├─ revised_from  version/2  r1.a1
    ├─ informed_by  section/summary.full@1
    ├─ informed_by  section/pharmacology.full@1
      ├─ used  claim/a65ff74d-18cd-4d51-9e3e-567d24b759ad  Claim in summary — partially_supported
      ├─ used  claim/08e2399c-d503-44e3-8691-6b045050d128  Claim in summary — inconclusive  working
      ├─ used  claim/1d8fbc16-b849-4de2-8205-2958e718d146  Claim in summary — partially_supported
      ├─ used  claim/8092695d-397f-4f1c-bf76-9991280ec116  Claim in pharmacology — inconclusive  working
      ├─ used  claim/3dfd1087-4039-435f-b95a-6fb889f702af  Claim in pharmacology — supported
      ├─ used  claim/b2a9eda5-c2b2-4fdd-8661-29a326e8ab1c  Claim in history — inconclusive  working
      ├─ used  claim/70b30766-a527-4a66-9f6c-ed4880c73311  Claim in history — inconclusive  working
      ├─ used  claim/6446b1ad-6daa-49f7-8f4e-53cb83c7b20f  Claim in chemistry — supported
      ├─ used  claim/76e89a55-b842-4fe6-8109-bbb5d608a51c  Claim in summary — supported
      ├─ used  claim/94569983-caf8-455a-8525-47794a62d437  Claim in safety — supported
      ├─ used  claim/a23951c4-a553-4224-b977-e824fe93ea7b  Claim in safety — supported
      ├─ used  claim/648c296c-8236-43a9-9e2e-09081c5b17df  Claim in chemistry — supported
      ├─ used  claim/fc97b692-3aee-4b3b-a551-5884424c01d9  Claim in summary — supported
      ├─ used  claim/57cf8564-cb30-438a-822b-4df2950df674  Claim in history — supported
      ├─ used  claim/adb9fef7-370d-413c-9f2f-8dcbaa8ae826  Claim in neuroscience — supported
      ├─ used  claim/e9e10cd1-8e81-4e1a-9884-063ab2a93a26  Claim in effects-overview — supported
      ├─ used  claim/a16be670-bbec-43ce-b6ba-06f322711822  Claim in summary — supported
      ├─ used  claim/13bd8a97-570a-4f6f-8a93-d7ffe065f460  Claim in pharmacology — inconclusive  working
      ├─ used  claim/8d519266-1eaf-4bdd-9d68-6c76a74f9030  Claim in safety — inconclusive  working
      ├─ used  claim/5bd179f7-6168-49e3-a3db-3d4eb12897fb  Claim in history — inconclusive  working
      ├─ used  claim/2c2aa831-d2b4-4b8f-834c-7124126e14e4  Claim in chemistry — inconclusive  working
      ├─ used  claim/5ab69b89-ed17-47a1-a5e3-0cb7a9c8b63f  Claim in comparative-pharmacology — inconclusive  working
      ├─ used  claim/a165dee7-35e2-4944-a544-edec77620adb  Claim in summary — supported
      ├─ used  claim/29d4ed32-cebb-41e1-bdb6-a9b78ae84623  Claim in safety — supported
      ├─ used  claim/1f57cebc-3dc6-4c75-b663-5dc450fe6625  Claim in safety — supported
      ├─ used  claim/f9cfa437-02bd-40d5-b032-9e0b00939e90  Claim in neuroscience — supported
      ├─ used  claim/42544ad7-252b-438e-9280-c91c79c7b9ef  Claim in history — supported
      ├─ used  claim/a42ef8eb-8cd4-4da5-a3f0-23757bebc1bf  Claim in history — supported
      ├─ used  claim/b28b7753-26d6-4af0-b4c4-443da693b445  Claim in legal-status — supported
      ├─ used  claim/21286885-5cfd-4613-87ed-ded82b2cdf70  Claim in history — supported
      ├─ used  claim/869708ff-9d57-40c7-a30a-f8276d0f706b  Claim in chemistry — supported
      ├─ used  claim/76d9625f-5efb-41dc-a9a3-12b14b88fdba  Claim in pharmacology — supported
      ├─ used  claim/33135702-0c51-4f1b-be52-43e60e158cb7  Claim in safety — supported
      ├─ used  claim/ba5f55e3-e048-4667-ae5c-d87b018ed58e  Claim in pharmacokinetic-detail — supported
      ├─ used  claim/a24d195d-3d91-4c84-a8d2-dfd1f525bff9  Claim in pharmacology — supported
      ├─ used  claim/47d689e3-ec05-406f-b784-e4082a42b504  Claim in pharmacology — supported
      ├─ used  claim/0f7173b3-3ace-4f7e-844c-d38ecf1f7099  Claim in pharmacokinetic-detail — supported
      ├─ used  claim/e0403892-426e-4266-957d-93efd8b8fe6b  Claim in pharmacokinetic-detail — supported
      ├─ used  claim/28a6e5d1-735e-4446-abfa-7d32afcfdab4  Claim in comparative-pharmacology — supported
      ├─ used  claim/b580f512-0c53-43bb-9c93-3399ff5cbf81  Claim in pharmacology — supported
      ├─ used  claim/a255ce95-a3d5-4f8f-b259-ebd32088e567  Claim in pharmacokinetic-detail — partially_supported
      ├─ used  claim/54a1c2dd-14b6-48ed-839a-25dd168795ef  Claim in comparative-pharmacology — supported
      ├─ used  claim/b7403d1b-3c87-482d-8110-06e450afb13c  Claim in pharmacokinetic-detail — supported
      ├─ used  claim/8aff2220-40e4-4bef-b390-35836df3ff00  Claim in pharmacokinetic-detail — supported
      ├─ used  claim/ff93d00b-0e19-4790-990c-3b875e34cc7d  Claim in pharmacokinetic-detail — supported
      ├─ used  claim/28b8cda0-e6a7-407d-9df9-9d9dcb62b84c  Claim in safety — supported
      ├─ used  claim/6025e2d3-fa29-4bd8-8489-64834ced86d3  Claim in safety — partially_supported
      ├─ used  claim/3e682107-9a77-47f3-9840-f03ee0a403de  Claim in comparative-pharmacology — inconclusive  working
      ├─ used  claim/f3f42fb3-cee8-44f2-8231-b97cde6edfdc  Claim in safety — supported
      ├─ used  claim/48c57f7f-f6a8-48d6-982d-7de2ebdb5b96  Claim in safety — inconclusive  working
      ├─ used  claim/3d74987f-6d0d-4ac0-bad3-a84240911e3f  Claim in safety — supported
      ├─ used  claim/c35e3661-e1a9-42cf-a0be-44d3b271a037  Claim in safety — supported
      ├─ used  claim/807ca6aa-bdfc-4beb-b16f-38c68a469b9a  Claim in safety — supported
      └─ derived_from  issue/info_card@71c903bd2cd5  Issued info_card
… closure truncated at 200 nodes

indented by distance from this node, not by parentage

1Provenance card

the boundary, as counts

Sources

2525 with DOI

11 strong · 14 moderate · 0 weak

Compilations

12026-05-11T12:45:42.945Z

pipeline-v5 · prompt hash not recorded — run predates 2026-09

Decisions

49last ruled 2026-10-02

0 awaiting a ruling

Issued documents

62026-10-19T20:34:09.384Z

notice · info card · emergency

Searches

161 with no results

queries and counts on the build

Claims checked

6045 supported

45 supported · 15 not

Correspondence

0received

consent field ships in Phase 4

Edges

231

derivations recorded for this entity

Complete over 25 sources, 1 compilation, and 49 decisions.Not here: the private journal (never).Working material — drafts, discards, unsupported claims — is listed below and readable on the working page.Cite: psychedex.org/substances/tetrahydrocannabiphorol/archive

2Build

one panel per compilation run

generation run 2026-05-11

89 min completedmodel pipeline-v5plan not recordedrun/d19684dd…

Selection

results seen111
selected by the model35
consumed as sources25

Verification

claims checked60
supported41
partially supported4
not supported0
inconclusive15
  • record
  • seen / partial
  • working

The model's own caveats

  • sparse_evidence
  • sparse_evidence
  • sparse_evidence

Reproduce

inputs
25 source keys (listed under Sources)
plan
not recorded — template version, prompt hash and git SHA are written from 2026-09 onward
model
pipeline-v5
streams
none — agent transcripts are persisted from 2026-09 onward
16 searches — query, source, results, what was kept and why
16 searches for this run
#sourcequeryseenkeptrationale
1PubMedtetrahydrocannabiphorol THCP cannabinoid pharmacology33All directly relevant; Citti 2019 is the primary discovery paper
2PubChemtetrahydrocannabiphorol11Primary compound identity confirmation
3PubMedCitti cannabinoid phytocannabinoid Cannabis sativa isolation42Contextual: the cannabidihexol paper directly discusses THCP/CBDP discovery in the same FM2 cannabis variety; enantioseparation paper relevant to THCP stereochemistry
4OpenAlextetrahydrocannabiphorol THCP104Selected papers directly discussing THCP or closely related phytocannabinoid homologs
5PubMedTHCP tetrahydrocannabiphorol metabolism toxicology forensic21Validated analytical method covering THCP in forensic matrices
6OpenAlexTHCP tetrahydrocannabiphorol legal scheduling emerging cannabinoid104Directly relevant to THCP's forensic presence, legal status, and regulatory context
7ClinicalTrials.gov · absencetetrahydrocannabiphorol THCP00No trials exist
8Crossref via verify_doi10.3390/psychoactives304003011Confirmed valid DOI for THCP synthetic impurities paper; important for documenting semi-synthetic nature of commercial THCP
9WebSearchTHCP tetrahydrocannabiphorol legal status DEA scheduling United States 2024 2025103Legal status landscape summary; web-retrieved only, needs flag
10PubMedPMID 37269160, 38894658, 3880422433HHCP is the hydrogenated analog of THCP sharing the C7 chain; its pharmacology and metabolism are best available analogs for THCP
11WebFetch—10Could not extract usable data from PDF format
12WebSearchTHCP tetrahydrocannabiphorol legal status UK Europe Australia scheduling 2024102EU/UK legal landscape web-retrieved summary
13PubMedcannabinoid use disorder cannabis dependence withdrawal clinical81Provides dependence/withdrawal framework applicable by class to THCP as CB1 full agonist
14WebSearchTHCP tetrahydrocannabiphorol CB2 receptor binding Ki potency compared THC100Confirmed receptor binding data already found in Citti 2019 (Ref 1); no new primary source needed
15OpenAlexTHCP tetrahydrocannabiphorol drug testing immunoassay forensic toxicology74Critical for forensic/analytical section; HHCP metabolite data provides best available analog for THCP metabolite prediction
16Multiple sourcesTHCP data synthesis across all findings316Core citation set for research output
60 claims by section — every cited sentence, checked against its source
safety13 · 11 ok
  • Claim in safety — inconclusiveinconclusiveworking →

  • Analysis of a commercial THCP vape cartridge revealed unlabeled synthetic impurities including 5-heptylresorcinol, bisalkylated compounds, and Δ8-THCP isomerssupported

    Identified Δ9-THCP, Δ8-THCP, CBP, CBDP, terpenes, plus synthetic impurities including 5-heptylresorcinol and bisalkylated side products consistent with chemical synthesis from olivetol analog. psychoactives3040030

  • Product declarations may not accurately reflect THCP content.supported

    GC-MS analysis of a vape liquid claiming 90% THCP + 10% terpenes. Identified Δ9-THCP, Δ8-THCP, CBP, CBDP, terpenes, plus synthetic impurities... psychoactives3040030

  • Acute cannabis-associated psychotic symptoms (CAPS) — including hallucinations, paranoia, and disorganized thinking requiring emergency treatment — occur in approximately 0.47% of cannabis users over a lifetime, with substantially elevated risk in young users, users of high-potency preparations, and individuals with pre-existing psychiatric vulnerabilitysupported

    0.47% of 233,475 cannabis users reported lifetime CAPS requiring emergency treatment. Young age, high-potency resin, co-use with tobacco, and pre-existing mental health diagnoses (psychosis, bipolar, anxiety, depression) correlated with elevated risk. s41398-022-02112-8

  • High-potency cannabis is specifically associated with poorer mental health outcomes in adolescents, including increased rates of anxiety disorders, depression, and psychotic experiencessupported

    Longitudinal study in adolescents finding association between high-potency cannabis use and poorer mental health outcomes including psychosis. jamapsychiatry.2020.1035

  • By class mechanism, chronic CB1 agonist exposure produces receptor desensitization (uncoupling from G-proteins) and downregulation (reduced receptor density), resulting in behavioral tolerancesupported

    Chronic cannabinoid use downregulates CB1 signaling causing tolerance and dependence. 25-0009

  • No pharmacotherapy is currently approved for cannabis withdrawal syndromesupported

    No pharmacotherapies currently approved for cannabis use disorder. Withdrawal characterized by irritability, sleep disturbance, anxiety, nausea. 02698811251399593

  • All interaction data are inferred from Δ9-THC class pharmacology.supported

    THC primarily metabolized by CYP2C9 and CYP3A4... Cannabinoids are inhibitors of multiple CYPs. 03602532.2013.849268

  • All interaction data are inferred from Δ9-THC class pharmacology.supported

    CYP2C9, CYP3A4, CYP1A2 relevant for THC interactions. Cannabis may affect anticoagulants (warfarin), immunosuppressants, and antiepileptics via CYP inhibition. jcp.0000000000001089

  • Anesthetic interactions: Chronic cannabinoid use is associated with increased propofol requirements and altered opioid responsiveness during anesthesiasupported

    Cannabis users may require higher propofol doses (CYP450 induction + CB1 downregulation). Altered responses to opioids, ketamine, gabapentinoids. 25-0009

  • Absolute contraindications: * Personal or family history of psychotic disorders (schizophrenia, schizoaffective disorder) — CB1 agonism precipitates and exacerbates psychotic symptoms; full agonism at THCP's potency amplifies this risk * Unstable cardiovascular disease — tachycardia and hemodynamic effects of potent CB1 agonism pose risk in the context of arrhythmia, recent myocardial infarction, or heart failuresupported

    Pre-existing mental health diagnoses (psychosis, bipolar, anxiety, depression) correlated with elevated risk. s41398-022-02112-8

  • Claim in safety — inconclusiveinconclusiveworking →

  • Relative contraindications: * Bipolar disorder — CB1 agonism may precipitate manic episodes in susceptible individuals * Pregnancy and lactation — cannabinoids cross the placenta and are present in breast milk; high-potency CB1 agonism poses unknown developmental risk * Adolescence — developing endocannabinoid systems are vulnerable to disruption by exogenous high-potency agonists * Concurrent use of CYP2C9 or CYP3A4 substrates with narrow therapeutic indices (warfarin, tacrolimus, cyclosporine) * History of cannabis use disorder — full agonism and higher potency predict elevated reinforcement * Hepatic impairment — reduced CYP metabolism may increase THCP exposure and prolong effectspartially supported

    CYP2C9, CYP3A4, CYP1A2 relevant for THC interactions. Cannabis may affect anticoagulants (warfarin), immunosuppressants, and antiepileptics via CYP inhibition. jcp.0000000000001089

pharmacology9 · 6 ok
  • Claim in pharmacology — inconclusiveinconclusiveworking →

  • Claim in pharmacology — inconclusiveinconclusiveworking →

  • Full agonism distinguishes THCP from Δ9-THC, which functions as a partial agonist at CB1 — a difference that may result in greater intrinsic efficacy and a higher ceiling of pharmacological effect.supported

    THCP, THCH, THC-C8, HHC, and HHCP identified as having higher CB1 activation potential than Δ9-THC. s00204-024-03769-4

  • Claim in pharmacology — inconclusiveinconclusiveworking →

  • The cannabinoid tetrad pharmacological test in mice demonstrated all four classic cannabimimetic effects at doses where Δ9-THC was inactive or less effective:supported

    In the cannabinoid tetrad pharmacological test, Δ9-THCP induced hypomotility, analgesia, catalepsy and decreased rectal temperature. s41598-019-56785-1

  • Metabolism: By analogy with Δ9-THC metabolism (primarily CYP2C9 and CYP3A4) and HHCP metabolism characterized via human hepatocyte incubation, the primary metabolic route is expected to be C-11 hydroxylation (analogous to 11-OH-THC formation), with additional side-chain hydroxylation at the C-5' and C-7' positionssupported

    THC primarily metabolized by CYP2C9 and CYP3A4; CBD by CYP2C19 and CYP3A4; CBN by CYP2C9 and CYP3A4. 03602532.2013.849268

  • Metabolism: By analogy with Δ9-THC metabolism (primarily CYP2C9 and CYP3A4) and HHCP metabolism characterized via human hepatocyte incubation, the primary metabolic route is expected to be C-11 hydroxylation (analogous to 11-OH-THC formation), with additional side-chain hydroxylation at the C-5' and C-7' positionssupported

    18 metabolites identified in urine; 11-OH, 5'-OH were present in all samples. Longer alkyl chain of HHCP led to greater side-chain hydroxylation than HHC. dta.3740

  • Metabolism: By analogy with Δ9-THC metabolism (primarily CYP2C9 and CYP3A4) and HHCP metabolism characterized via human hepatocyte incubation, the primary metabolic route is expected to be C-11 hydroxylation (analogous to 11-OH-THC formation), with additional side-chain hydroxylation at the C-5' and C-7' positionssupported

    Monohydroxylated and bishydroxylated metabolites and their glucuronides proposed as forensic targets. dta.3871

  • In human urine studies of HHCP, 99.3% of hydroxylated metabolites were present as glucuronide conjugates.supported

    99.3% of hydroxylated metabolites glucuronidated. dta.3740

summary8 · 6 ok
  • This structural difference confers a CB1 receptor binding affinity of Ki = 1.2 nM — approximately 33-fold greater than Δ9-THC — making THCP the most potent phytocannabinoid identified at the CB1 receptor to date.partially supported

    Its binding activity against human CB1 receptor in vitro (Ki = 1.2 nM) was similar to CP55940 (Ki = 0.9 nM), a potent full CB1 agonist. s41598-019-56785-1

  • Claim in summary — inconclusiveinconclusiveworking →

  • The compound entered the recreational cannabinoid market by 2022–2023 as a commercially synthesized product, typically sold in vape cartridges and ediblessupported

    GC-MS analysis of a vape liquid claiming 90% THCP + 10% terpenes. Identified Δ9-THCP... plus synthetic impurities... consistent with chemical synthesis from olivetol analog. psychoactives3040030

  • THCP functions as a full agonist at the CB1 receptor (Ki = 1.2 nM), contrasting with Δ9-THC's partial agonism at the same target (Ki ≈ 10–40 nM)partially supported

    Its binding activity against human CB1 receptor in vitro (Ki = 1.2 nM) was similar to CP55940 (Ki = 0.9 nM), a potent full CB1 agonist. s41598-019-56785-1

  • Claim in summary — inconclusiveinconclusiveworking →

  • The experiential profile, drawn entirely from consumer self-reports, includes intense sedation, pronounced euphoria, marked cognitive impairment, appetite stimulation, and altered time perception — qualitatively similar to Δ9-THC but reportedly more intense and longer-lasting at lower doses.supported

    Comprehensive review of THC-like cannabinoids on the recreational market including chemistry, synthesis, pharmacology, analytical methods, and subjective effects from recreational user reports on online forums. s42238-024-00226-y

  • Full agonism at CB1 — a pharmacological profile shared with synthetic cannabinoids associated with seizures, psychosis, and loss of consciousness — places THCP in a higher risk category than partial-agonist phytocannabinoids like THCsupported

    Potency dramatically higher than THC; intoxication, withdrawal, psychosis, death reported. Emphasizes dangers of high-potency full CB1 agonists with unknown pharmacology. fnbeh.2011.00060

  • Tolerance develops through CB1 receptor desensitization and downregulation; cross-tolerance with Δ9-THC is expected but not experimentally confirmedsupported

    Chronic cannabinoid use downregulates CB1 signaling causing tolerance and dependence. 25-0009

history7 · 4 ok
  • Claim in history — inconclusiveinconclusiveworking →

  • Claim in history — inconclusiveinconclusiveworking →

  • The same research group subsequently expanded the phytocannabinoid homolog series, identifying cannabidihexol (CBDH) and Δ9-tetrahydrocannabihexol (Δ9-THCH, a C6-chain homolog) in 2020supported

    New phytocannabinoids CBDH and Δ9-THCH isolated from FM2 medicinal cannabis variety. Paper explicitly mentions THCP and CBDP as previously discovered by same group. s41598-020-79042-2

  • Claim in history — inconclusiveinconclusiveworking →

  • By 2022–2023, THCP-containing vape cartridges and edibles were commercially available in Europe and North Americasupported

    Comprehensive review of THC-like cannabinoids on the recreational market including chemistry, synthesis, pharmacology, analytical methods, and subjective effects from recreational user reports. s42238-024-00226-y

  • In Sweden, THCP appeared after hexahydrocannabinol (HHC) and HHC-P were classified as narcotics in July 2023, functioning as an unregulated replacementsupported

    THC-P (THCP) and HHC-O appeared on Swedish market after HHC/HHC-P were classified as narcotics on 11 July 2023. 00365513.2024.2340039

  • In Denmark, seized drug analysis identified THCP in approximately 1% of semi-synthetic cannabinoid seizures between 2018 and 2023supported

    SSCs in seized cannabis products analyzed over 6 years in Denmark. THCP found at 1% prevalence. 1556-4029.15631

pharmacokinetic-detail7 · 7 ok
  • Identification of HHCP metabolites in human urine confirmed that mono-hydroxylated species and their glucuronide conjugates are the dominant urinary analytes, with 99.3% of hydroxylated metabolites excreted as glucuronidessupported

    99.3% of hydroxylated metabolites glucuronidated. 18 metabolites identified in urine; 11-OH, 5'-OH were present in all samples. dta.3740

  • HHCP metabolism in human hepatocyte incubations demonstrated monohydroxylation at multiple positions along the C7 chain, followed by oxidation to carboxylic acid metabolites and extensive glucuronidationsupported

    HHC and HHCP (heptyl homolog) incubated with primary human hepatocytes. Primary metabolism via monohydroxylation then carboxylic acid. 99.3% of hydroxylated metabolites glucuronidated. dta.3740

  • HHCP metabolism in human hepatocyte incubations demonstrated monohydroxylation at multiple positions along the C7 chain, followed by oxidation to carboxylic acid metabolites and extensive glucuronidationpartially supported

    Human urinary metabolites of HHCP identified after oral consumption. Monohydroxylated and bishydroxylated metabolites and their glucuronides proposed as forensic targets. dta.3871

  • Standard cannabinoid immunoassays designed to detect THC-COOH (11-nor-9-carboxy-THC) show reduced cross-reactivity with longer-chain cannabinoid metabolitessupported

    Longer alkyl side chains result in decreased cross-reactivity relative to Δ9-THC. bkae036

  • Definitive identification of THCP in biological matrices requires mass spectrometry (LC-MS/MS or LC-QTOF-MS).supported

    Validated LC-MS-MS method for quantitative confirmation of Δ8/Δ9-THC and metabolites, and qualitative identification of THCP... in blood and urine. bkaf023

  • Definitive identification of THCP in biological matrices requires mass spectrometry (LC-MS/MS or LC-QTOF-MS).supported

    Validated LC-QTOF-MS screening method for 24 phytocannabinoids and semi-synthetic cannabinoids in blood including THCP. bkaf095

  • If THCP is metabolized by CYP2C9 and CYP3A4 as inferred from THC pharmacology, it may be subject to pharmacokinetic interactions with inhibitors and inducers of these enzymessupported

    THC primarily metabolized by CYP2C9 and CYP3A4... Cannabinoids are inhibitors of multiple CYPs. 03602532.2013.849268

chemistry4 · 3 ok
  • This two-methylene extension is the sole structural distinction between THCP and THC and is responsible for THCP's dramatically enhanced CB1 receptor affinity.supported

    A new phytocannabinoid with the same structure of Δ9-THC but with a seven-term alkyl side chain... Its binding activity against human CB1 receptor in vitro (Ki = 1.2 nM) was similar to CP55940. s41598-019-56785-1

  • Claim in chemistry — inconclusiveinconclusiveworking →

  • Chiral analysis of the FM2 medicinal cannabis variety found no (+) enantiomers for any phytocannabinoids examined, consistent with exclusive (-)-trans configuration in planta.supported

    FM2 cannabis variety showed no (+) enantiomers, suggesting extraction does not cause configuration inversion. j.jchromb.2023.123682

  • Commercial THCP products may contain Δ8-THCP isomers (differing in double-bond position) as synthesis byproductssupported

    Identified Δ9-THCP, Δ8-THCP, CBP, CBDP, terpenes, plus synthetic impurities... consistent with chemical synthesis from olivetol analog. psychoactives3040030

comparative-pharmacology4 · 2 ok
  • Claim in comparative-pharmacology — inconclusiveinconclusiveworking →

  • Claim in comparative-pharmacology — inconclusiveinconclusiveworking →

  • HHCP metabolism data — the most directly applicable analog for predicting THCP metabolism — confirm that the heptyl chain introduces additional hydroxylation sites and results in more complex metabolite profiles.supported

    Longer alkyl chain of HHCP led to greater side-chain hydroxylation than HHC. dta.3740

  • HHCP metabolism data — the most directly applicable analog for predicting THCP metabolism — confirm that the heptyl chain introduces additional hydroxylation sites and results in more complex metabolite profiles.supported

    Monohydroxylated and bishydroxylated metabolites and their glucuronides proposed as forensic targets. dta.3871

receptor-pharmacology4 · 2 ok
  • Claim in receptor-pharmacology — inconclusiveinconclusiveworking →

  • Claim in receptor-pharmacology — inconclusiveinconclusiveworking →

  • EC50 values at CB1 from the β-arrestin2 recruitment assay are reported in supplementary data by Janssens et al. but were not available in the published abstract.supported

    THCP, THCH, THC-C8, HHC, and HHCP identified as having higher CB1 activation potential than Δ9-THC. s00204-024-03769-4

  • In a panel of 30 THC isomers, homologs, and analogs assessed by β-arrestin2 recruitment bioassay at human CB1, THCP was identified among several compounds (alongside THCH and THC-C8) showing higher CB1 activation potential than Δ9-THC, based on either greater efficacy (Emax) or greater potency (EC50)supported

    Panel of 30 THC isomers/homologs/analogs assessed via CB1 beta-arrestin2 recruitment bioassay. THCP, THCH, THC-C8, HHC, and HHCP identified as having higher CB1 activation potential than Δ9-THC. s00204-024-03769-4

neuroscience2 · 2 ok
  • THCP's dose-dependent transition from anxiolysis to anxiogenesis, as described in consumer reports, is consistent with this bidirectional mechanism.supported

    Comprehensive review of THC-like cannabinoids on the recreational market including... subjective effects from recreational user reports on online forums. Covers THCP and related homologs. s42238-024-00226-y

  • CB1 receptor downregulation and desensitization represent the system's attempt to restore homeostasis in the face of persistent exogenous agonism.supported

    Chronic cannabinoid use downregulates CB1 signaling causing tolerance and dependence. 25-0009

effects-overview1 · 1 ok
  • The experiential consequence, based on consumer reports, is a cannabinoid state that can escalate beyond the bounds of typical cannabis experience into territory more commonly associated with high-potency synthetic cannabinoids.supported

    Comprehensive review of THC-like cannabinoids on the recreational market including chemistry, synthesis, pharmacology, analytical methods, and subjective effects from recreational user reports on online forums. s42238-024-00226-y

legal-status1 · 1 ok
  • The scheduling trajectory across jurisdictions follows a consistent pattern: THCP enters markets as an unregulated alternative after related compounds (HHC, HHC-P, THC-O) are scheduled, prompting reactive regulatory responses within 12–24 monthssupported

    THC-P (THCP) and HHC-O appeared on Swedish market after HHC/HHC-P were classified as narcotics on 11 July 2023. 00365513.2024.2340039

3Sources

25 consumed · sorted by year · feeds = sections resting on it

Sources
yearsourcetierstatusfeeds
2026Evidence-based consensus guidelines for the pharmacological management of substance dependence: Recommendations from the British Association for PsychopharmacologySinclair JM, Kalk NJ, Kaar SJ, et al. · Journal of psychopharmacologydoi:10.1177/02698811251399593strongconsumed1 section
2026Marijuana Use and Its Impact on Outpatient Anesthesia.Mann DK, Portnof J, Adlesic E · Anesthesia Progressdoi:10.2344/25-0009moderateconsumed3 sections
2025Comprehensive LC-MS-MS analysis of THC isomers, analogs, homologs, and metabolites in blood and urineMuir LS, Doumit SE, Seither JZ, Knittel JL, Walterscheid JP, Karschner EL · Journal of Analytical Toxicologydoi:10.1093/jat/bkaf023moderateconsumed1 section
2025Human metabolism of the semi-synthetic cannabinoids hexahydrocannabinol, hexahydrocannabiphorol and their acetates using hepatocytes and urine samplesLindbom K, Norman C, Baginski S, Krebs L, Stalberga D, Rautio T, Wu X, Kronstrand R, Grén H · Drug Testing and Analysisdoi:10.1002/dta.3740moderateconsumed3 sections
2025Identification of Hexahydrocannabiphorol Metabolites in Human UrineSchirmer W, Schürch S, Weinmann W · Drug Testing and Analysisdoi:10.1002/dta.3871moderateconsumed3 sections
2025In vitro activation of the CB1 receptor by the semi-synthetic cannabinoids hexahydrocannabinol (HHC), hexahydrocannabinol acetate (HHC-O) and hexahydrocannabiphorol (HHC-P)Persson M, Kronstrand R, Evans-Brown M, Green H · Drug Testing and Analysisdoi:10.1002/dta.3750strongconsumed1 section
2025Rapid LC-QTOF-MS screening method for semi-synthetic cannabinoids in whole bloodSchirmer W, Walton SE, Weinmann W, Schürch S, Logan BK · Journal of Analytical Toxicologydoi:10.1093/jat/bkaf095strongconsumed1 section
2025Single trichome phytocannabinomics of two different cannabis varietiesFerri E, Cerrato A, Caprari C, Russo F, Laganà A, Capriotti AL, Faggiana G, Moro A, Citti C, Cannazza G · Journal of Pharmaceutical and Biomedical Analysisdoi:10.1016/j.jpba.2025.116836strongconsumedcited only
2024An emerging trend in Novel Psychoactive Substances (NPSs): designer THCCaprari C, Ferri E, Vandelli MA, Citti C, Cannazza G · Journal of Cannabis Researchdoi:10.1186/s42238-024-00226-ymoderateconsumed4 sections
2024Appearance of hexahydrocannabinols as recreational drugs and implications for cannabis drug testing - focus on HHC, HHC-P, HHC-O and HHC-HHelander A, Johansson M, Villén T, Andersson A · Scandinavian Journal of Clinical and Laboratory Investigationdoi:10.1080/00365513.2024.2340039moderateconsumed2 sections
2024Cannabidiol-Derived Cannabinoids: The Unregulated Designer Drug Market Following the 2018 Farm BillZawatsky CN, Mills-Huffnagle S, Augusto CM, Vrana KE, Nyland JE · Medical Cannabis and Cannabinoidsdoi:10.1159/000536339moderateconsumedcited only
2024CBD Versus CBDP: Comparing In Vitro Receptor-Binding ActivitiesHaghdoost M, Young S, Holloway AK, Roberts M, Zvorsky I, Bonn-Miller MO · International Journal of Molecular Sciencesdoi:10.3390/ijms25147724strongconsumedcited only
2024Cross-reactivity of 24 cannabinoids and metabolites in blood using the Immunalysis Cannabinoids Direct enzyme-linked immunosorbent assayPatton AL, Pacheco IC, Seither JZ, Brown JT, Walterscheid JP, Karschner EL · Journal of Analytical Toxicologydoi:10.1093/jat/bkae036strongconsumed1 section
2024Emergence of semi-synthetic cannabinoids in cannabis products seized in Eastern Denmark over a 6-year periodJørgensen CF, Rasmussen BS, Línnet K, Thomsen R · Journal of Forensic Sciencesdoi:10.1111/1556-4029.15631moderateconsumed1 section
2024Investigation of the intrinsic cannabinoid activity of hemp-derived and semisynthetic cannabinoids with β-arrestin2 recruitment assays - and how this matters for the harm potential of seized drugsJanssens LK, Van Uytfanghe K, Williams JB, Hering KW, Iula DM, Stove CP · Archives of Toxicologydoi:10.1007/s00204-024-03769-4moderateconsumed3 sections
2024The Identification of Synthetic Impurities in a Vape Pen Containing Δ9-Tetrahydrocannabiphorol Using Gas Chromatography Coupled with Mass SpectrometrySchirmer W, Schürch S, Weinmann W · Psychoactivesdoi:10.3390/psychoactives3040030strongconsumed3 sections
2023Enantioseparation of chiral phytocannabinoids in medicinal cannabisRusso F, Tolomeo F, Vandelli MA, Biagini G, Laganà A, Capriotti AL, Cerrato A, Carbone L, Perrone E, Cavazzini A, Maiorano V, Gigli G, Cannazza G, Citti C · Journal of Chromatography Bdoi:10.1016/j.jchromb.2023.123682strongconsumed1 section
2022Rates and correlates of cannabis-associated psychotic symptoms in over 230,000 people who use cannabisSchoeler T, Ferris J, Winstock AR · Translational Psychiatrydoi:10.1038/s41398-022-02112-8moderateconsumed1 section
2020Association of High-Potency Cannabis Use With Mental Health and Substance Use in AdolescenceHines LA, Freeman TP, Gage SH, Zammit S, Hickman M, Cannon M, Munafo M, MacLeod J, Heron J · JAMA Psychiatrydoi:10.1001/jamapsychiatry.2020.1035moderateconsumed1 section
2020Identification of a new cannabidiol n-hexyl homolog in a medicinal cannabis variety with an antinociceptive activity in mice: cannabidihexolLinciano P, Citti C, Russo F, Tolomeo F, Laganà A, Capriotti AL, Luongo L, Iannotta M, Belardo C, Maione S, Forni F, Vandelli MA, Gigli G, Cannazza G · Scientific Reportsdoi:10.1038/s41598-020-79042-2strongconsumed1 section
2020Phytocannabinoids: Origins and BiosynthesisGülck T, Møller BL · Trends in Plant Sciencedoi:10.1016/j.tplants.2020.05.005moderateconsumedcited only
2019A novel phytocannabinoid isolated from Cannabis sativa L. with an in vivo cannabimimetic activity higher than Δ9-tetrahydrocannabinol: Δ9-TetrahydrocannabiphorolCitti C, Linciano P, Russo F, Luongo L, Iannotta M, Maione S, Laganà A, Capriotti AL, Forni F, Vandelli MA, Gigli G, Cannazza G · Scientific Reportsdoi:10.1038/s41598-019-56785-1strongconsumed5 sections
2019The Potential for Pharmacokinetic Interactions Between Cannabis Products and Conventional MedicationsQian Y et al. · Journal of Clinical Psychopharmacologydoi:10.1097/jcp.0000000000001089moderateconsumedcited only
2014Exogenous cannabinoids as substrates, inhibitors, and inducers of human drug metabolizing enzymes: a systematic review.Stout SM, Cimino NM · Drug metabolism reviewsdoi:10.3109/03602532.2013.849268strongconsumed3 sections
2011Beyond THC: The New Generation of Cannabinoid Designer DrugsFattore L, Fratta W · Frontiers in Behavioral Neurosciencedoi:10.3389/fnbeh.2011.00060moderateconsumed7 sections
—Searched ClinicalTrials.gov for "tetrahydrocannabiphorol THCP" — no resultsabsenceno results—

4Docket

one filing per activity — decisions, correspondence, reports

  1. 0012026-05-11revisionRevision 1

    Initial LLM generation (v5 pipeline, wiki, prose phase)

    psx:substance/tetrahydrocannabiphorol/version/1
  2. 0022026-06-04proposal43 value proposals approved together

    one review action inferred from a shared reviewer and instant — the graph records one activity per proposal

    43 items in this filing

    • contraindication · cardiovascular
    • contraindication · psychiatric
    • contraindication · pregnancy_breastfeeding
    • contraindication · age
    • contraindication · other
    • contraindication · psychiatric
    • contraindication · hepatic
    • dose_tier · threshold
    • dose_tier · light
    • dose_tier · common
    • dose_tier · strong
    • dose_tier · heavy
    • toxicity
    • dependence · full
    • withdrawal
    • tolerance
    • dosage · vaporized
    • dosage · oral
    • duration · vaporized · onset
    • duration · vaporized · come_up
    • duration · vaporized · peak
    • duration · vaporized · offset
    • duration · vaporized · total
    • duration · vaporized · aftereffects
    • duration · oral · onset
    • duration · oral · come_up
    • duration · oral · peak
    • duration · oral · offset
    • duration · oral · total
    • duration · oral · aftereffects
    • timeline · vaporized · onset
    • timeline · vaporized · come_up
    • timeline · vaporized · peak
    • timeline · vaporized · plateau
    • timeline · vaporized · resolution
    • timeline · vaporized · afterglow
    • timeline · oral · onset
    • timeline · oral · come_up
    • timeline · oral · peak
    • timeline · oral · plateau
    • timeline · oral · resolution
    • timeline · oral · afterglow
    psx:substance/tetrahydrocannabiphorol/proposal/contraindication/c25d3770-9aa4-4456-bb4b-cff34b398d84
  3. 0032026-06-04publicationPublication — backfill
  4. 0042026-10-02rulingRuling — psx:substance/tetrahydrocannabiphorol/proposal/article_section_proposals/cb58f7bd-d470-4698-a4be-c568c82b9cd9founder
  5. 0052026-10-02rulingRuling — psx:substance/tetrahydrocannabiphorol/proposal/article_section_proposals/d2c334dd-2c8f-452b-a4d2-c3129be5d86efounder
  6. 0062026-10-02revisionr1.a1
  7. 0072026-10-02publicationPublication — publishagent-psx

5Issued documents

what the notice, info card and emergency page said, by hash

Issued documents
documentcontent hashissuedfrom versionsuperseded
emergency7386375eac1334714f070b93…2026-10-19 20:34Revision 2current
info_card71c903bd2cd53c6ea5639b49…2026-10-19 20:34Revision 2current
info_card1722db9f7bf2f2670dfe3ea3…2026-10-02 13:10Revision 2superseded2026-10-19
emergency207cf682e28a91d88136b9a2…2026-09-04 04:32Revision 1superseded2026-10-19
info_carde233c2ca52a16af62283fd59…2026-09-04 04:32Revision 1superseded2026-10-02
noticebe4a9d59ca1428869e13d168…2026-09-04 04:32Revision 1current