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4-AcO-DiPT

4-acetoxy-N,N-diisopropyltryptamine

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psx:substance/4-aco-dipt/claim/0344a6c2-3f8e-4740-b107-56d049633532

claim2026-04-26recordpartially_supported

derived from · upstream

feeds · downstream

Closure of psx:substance/4-aco-dipt/claim/0344a6c2-3f8e-4740-b107-56d049633532: 58 upstream, 71 downstream.

psx:substance/4-aco-dipt/claim/0344a6c2-3f8e-4740-b107-56d049633532
├─ used  src/doi:10.1021/acsptsci.2c00222  Receptor Binding Profiles for Tryptamine Psychedelics and Effects of 4-Propionoxy-N,N-dimethyltryptamine in Mice
  ├─ informed_by  claim/4f3af3cf-0015-4e45-b550-7a6e03ed16c4  Claim in pharmacology — partially_supported
  ├─ informed_by  claim/9ce6cd10-de7d-4844-b32f-34579370b7c9  Claim in pharmacology — supported
  ├─ informed_by  claim/2722b09d-8f2b-4eb1-8bb4-8844f9a06651  Claim in pharmacology — partially_supported
  ├─ informed_by  claim/bff0ecb3-2d63-4f47-aafd-4f76f365b84c  Claim in pharmacology — inconclusive  working
  ├─ informed_by  claim/f1ac7acf-ee65-4a23-8d0f-d804299036e9  Claim in pharmacology — supported
  ├─ informed_by  claim/7ae9bea4-8f77-413c-ae56-ad823677a99e  Claim in pharmacology — supported
  ├─ informed_by  claim/09496df2-fd14-4540-bc2d-1860816ea792  Claim in pharmacology — supported
  ├─ informed_by  claim/68a3ccaf-29fe-4237-bde4-fb77687ca1ec  Claim in pharmacology — supported
  ├─ informed_by  claim/7fa44af7-a9fa-4c33-915f-b1ced53fbe19  Claim in pharmacology — supported
    ├─ used  src/doi:10.1021/acschemneuro.4c00058  RE104: Synthesis and Activity of a Novel Serotonergic Psychedelic Prodrug of 4-Hydroxy-N,N-diisopropyltryptamine
    ├─ used  src/doi:10.1002/jhet.5570140113  Psilocin analogs. 1. Synthesis of 3-[2-(dialkylamino)ethyl]-and 3-[2-(cycloalkylamino)ethyl] indol-4-ols
    ├─ used  src/url:34b3884f6fcac7ff  4-AcO-DiPT - Wikipedia
    ├─ used  src/url:84f60252f7e47e61  RE104 Safety and Efficacy Study in Postpartum Depression
    ├─ used  src/doi:10.3390/metabo12080705  Human Hepatocyte 4-Acetoxy-N,N-Diisopropyltryptamine Metabolite Profiling by LC-HRMS/MS
    ├─ used  src/doi:10.1038/s41386-023-01744-8  Psilocybin analog 4-OH-DiPT enhances fear extinction and GABAergic inhibition of principal neurons in the basolateral amygdala
    ├─ used  src/doi:10.1016/j.euroneuro.2016.05.001  Receptor interaction profiles of novel psychoactive tryptamines compared with classic hallucinogens
    ├─ used  src/doi:10.1021/acschemneuro.2c00170  Tolerance and Cross-Tolerance among Psychedelic and Nonpsychedelic 5-HT2A Receptor Agonists in Mice
    ├─ used  src/doi:10.1124/jpet.114.219337  Tolerance and cross-tolerance to head twitch behavior elicited by phenethylamine- and tryptamine-derived hallucinogens in mice.
    ├─ used  src/doi:10.2174/1570159X13666141210222409
    ├─ used  src/url:964fa07ee104a963  TiHKAL Chapter 4 (DIPT) - Erowid Online Books
    ├─ used  src/doi:10.1007/s00702-009-0308-8  Dimethyltryptamine and other hallucinogenic tryptamines exhibit substrate behavior at the serotonin uptake transporter and the vesicle monoamine transporter.
    ├─ used  src/doi:10.16889/isomerdesign-5-supp  PeakAL: Protons I Have Known and Loved, Too - Another Fifty Shades of Grey-Market Spectra. Supplementary Data
    ├─ used  src/url:7f3e275458a7f5f1  Schedules of Controlled Substances: Placement of 4-OH-DiPT, 5-MeO-AMT, 5-MeO-MiPT, 5-MeO-DET, DiPT in Schedule I [Proposed Rule - Withdrawn]
    ├─ used  src/url:40f6389b73d7d95a  RE104 Safety and Efficacy Study in Adjustment Disorder in Cancer and Other Medical Illnesses
    ├─ used  src/doi:10.1021/acsptsci.0c00173  Discriminative Stimulus Effects of Substituted Tryptamines in Rats
    ├─ used  src/url:3218de26972bd1c4  4-AcO-DiPT - PsychonautWiki
    ├─ used  src/doi:10.1016/j.toxlet.2015.11.013  Cytochrome P450 inhibition potential of new psychoactive substances of the tryptamine class
    ├─ used  src/doi:10.1124/jpet.122.001454  Pharmacologic Activity of Substituted Tryptamines at 5-HT2A, 5-HT2C, 5-HT1A Receptors and SERT
    ├─ used  src/doi:10.1002/dta.3255  Tentative identification of in vitro metabolites of O-acetylpsilocin (psilacetin, 4-AcO-DMT) by UHPLC-Q-Orbitrap MS
    ├─ used  src/doi:10.1002/dta.2197  Metabolism of the tryptamine-derived new psychoactive substances 5-MeO-2-Me-DALT, 5-MeO-2-Me-ALCHT, and 5-MeO-2-Me-DIPT and their detectability in urine
    ├─ used  src/doi:10.1093/jat/bkac023  Reports of Adverse Events Associated with Use of Novel Psychoactive Substances, 2017–2020: A Review
    ├─ used  src/doi:10.1007/s11419-018-0433-x  Effects of exposure to 5-MeO-DIPT during adolescence on brain neurotransmission and neurotoxicity in adult rats
    ├─ used  src/doi:10.1016/j.euroneuro.2014.05.008  Hallucinogen persisting perception disorder and the serotonergic system: a comprehensive review including new MDMA-related clinical cases
    ├─ used  src/doi:10.1007/s00213-022-06066-z  Flashback phenomena after administration of LSD and psilocybin in controlled studies with healthy participants
    ├─ used  src/doi:10.1177/0897190013504957  Serotonin syndrome: is it a reason to avoid the use of tramadol with antidepressants?
    ├─ derived_from  gen/6e4e43dc-6350-480e-a75e-e482759ef133  Generation — pipeline-v5
    ├─ generated_by  pub/37470074-f943-4609-853a-6827074bcc74  Publication — backfill
      ├─ used  search/badb9aa1-1713-41fd-b354-6d2b080b47de  Searched PubChem for "4-AcO-DiPT by name"
      ├─ used  search/e344bb95-0464-477c-9c74-9b4a95f09076  Searched PubMed for "4-AcO-DiPT OR 4-acetoxy-dipropyltryptamine OR dipropyltryptamine acetate pharmacology"
      ├─ used  search/0e15494a-deea-4b12-a189-f902bdf66611  Searched OpenAlex for "4-AcO-DiPT tryptamine psychedelic pharmacology"
      ├─ used  search/67ae1ca1-ae7e-4e1d-bbe2-57f2ef983be5  Searched PubMed for "4-OH-DiPT OR 4-hydroxy-N,N-diisopropyltryptamine pharmacology serotonin"
      ├─ used  search/1c5eb7bd-81f2-4a4c-91d0-88a1ee14a108  Searched PubMed for "Shulgin tryptamine synthesis diisopropyltryptamine"
      ├─ used  search/c92dece1-4344-4972-a626-37155cc08a48  Searched PubMed for "tryptamine metabolism acetoxy 4-AcO hydrolysis psilocin prodrug"
      ├─ used  search/075d2aa2-339e-464a-bdd3-c4533ecf92a0  Searched ClinicalTrials.gov for "4-OH-DiPT OR 4-hydroxy-diisopropyltryptamine OR RE104"
      ├─ used  search/4037d540-17af-4cee-bce6-955bb0f80adb  Searched PubChem for "CID 24801868 full record"
      ├─ used  search/e890b91c-a9ec-40c1-9c4c-ca2393a09c91  Searched PubMed for "4-acetoxy diisopropyltryptamine metabolism hepatocyte"
      ├─ used  search/fce562c9-46e4-4ca2-949a-3d185c947f2b  Searched Erowid TIHKAL
      ├─ used  search/8c72a4fc-5a11-4e6e-867a-9b993f2ffa03  Searched ClinicalTrials.gov for "RE104"
      ├─ used  search/bcfcd252-a019-471e-8b85-5058a52efb62  Searched Federal Register / DEA
      ├─ used  search/d785ccd9-892d-422b-af95-d7d0c1bcc1a2  Searched Web search for "4-AcO-DiPT legal status Japan UK Germany Sweden Australia"
      ├─ used  search/045a4cae-4562-40b8-8c2a-7b7a8d4c72ec  Searched PMC/PubMed
      ├─ used  search/27d6365c-5bed-4d1e-b06b-3c76eff875dc  Searched Erowid TIHKAL via isomerdesign.com
      ├─ used  search/2e8917ce-3ea7-4097-b7d8-948f9bde7a45  Searched PubMed for "5-MeO-DiPT adverse events fatality rhabdomyolysis neurotoxicity clinical"
      ├─ used  search/0a39b1e8-ba9d-4eca-85a3-2689bd696c9f  Searched PubMed for "psychedelic serotonin 5-HT2A receptor downregulation tolerance mechanism hallucinogen"
      ├─ used  search/e51b8d6d-947d-451f-8885-e5ffe2e80e7a  Searched PubMed for "tolerance cross-tolerance head twitch response tryptamine phenethylamine hallucinogen"
      ├─ used  search/67d1b340-661a-4f03-b7fd-20235d877149  Searched Web search for "4-AcO-DiPT Germany NpSG Canada Australia legal status"
      └─ used  search/6a4d8c71-d418-480d-86f3-5568f1232156  Searched Multiple sources for "4-AcO-DiPT CAS number"
├─ informed_by  section/pharmacology.full@1
  ├─ used  version/1  Revision 1
  ├─ used  claim/bfdc24b9-1348-428b-a2fc-b8250e3537b0  Claim in chemistry — inconclusive  working
  ├─ used  claim/e745f325-8e08-438e-88d4-a9d6f2b7d601  Claim in receptor-pharmacology — supported
  ├─ used  claim/4d1be47d-b17a-4bdc-a528-f58245e4ba73  Claim in comparative-pharmacology — supported
    ├─ derived_from  issue/notice@64878b43a1d2  Issued notice
    ├─ derived_from  issue/info_card@387ce0fb3225  Issued info_card
    ├─ derived_from  issue/emergency@3f0909c25c71  Issued emergency
    ├─ derived_from  issue/notice@f069a9dea47b  Issued notice
    ├─ derived_from  issue/info_card@0dfa88bbb633  Issued info_card
    ├─ derived_from  issue/emergency@c15c760aabf6  Issued emergency
    ├─ informed_by  section/chemistry.full@1
    ├─ informed_by  section/receptor-pharmacology.full@1
    ├─ informed_by  section/comparative-pharmacology.full@1
      ├─ used  claim/9b9402f4-6668-4756-bcb2-efc3da0bea5d  Claim in summary — supported
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      ├─ used  claim/493ca450-0430-424a-9565-97c2fad52835  Claim in clinical-evidence — partially_supported
      ├─ used  claim/ccfd6530-1c0e-4c39-96cd-4a7cba66b612  Claim in pharmacokinetic-detail — supported
      ├─ used  claim/7beff5f6-44ba-4eca-92a2-cd7aaf701cd5  Claim in pharmacokinetic-detail — supported
      ├─ used  claim/f4406a1c-dbe1-4705-bd31-9b94ff9959e2  Claim in comparative-pharmacology — supported
      ├─ used  claim/557caf4e-b71c-4d05-a7ef-d4a8e1076a79  Claim in neuroscience — supported
      ├─ used  claim/e66688b9-7e0a-4dc7-9810-74491c6419c3  Claim in summary — inconclusive  working
      ├─ used  claim/58d08d1c-1d5e-46a8-a346-4723428fc888  Claim in history — inconclusive  working
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      ├─ used  claim/763576a2-b23e-49ab-b8ab-27e8fa29f9ee  Claim in pharmacokinetic-detail — supported
      ├─ used  claim/04083924-9701-49a5-ab47-79fd7bdb2191  Claim in summary — partially_supported
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      ├─ used  claim/b22e9978-ceed-43c4-8ee9-fb856cb81e70  Claim in receptor-pharmacology — supported
      ├─ used  claim/f897f9d2-ebf8-44c2-bc10-f3c6fc57a6f4  Claim in neuroscience — supported
      ├─ used  claim/67ba07e5-eab7-4c65-b91b-d3289098b5a0  Claim in neuroscience — supported
      ├─ used  claim/50c3ee97-f5f2-412b-8684-907910980aa8  Claim in neuroscience — supported
      ├─ used  claim/7dd4befd-45a5-4cfb-a424-032f290c771f  Claim in summary — supported
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      ├─ used  claim/f2382c7c-cec3-4edb-821f-6d23c4800f55  Claim in safety — supported
      ├─ used  claim/91c0429a-10b0-4f0a-9626-8aa43ddc781e  Claim in receptor-pharmacology — supported
      ├─ used  claim/297785e6-71da-43e9-81e8-8b85882c1144  Claim in comparative-pharmacology — supported
      ├─ used  claim/3c11aa96-e236-4675-b35f-496db58ad789  Claim in neuroscience — supported
      ├─ used  claim/3e3123ff-eef8-4ee2-a5f2-0287828190db  Claim in summary — supported
      ├─ used  claim/3b459e56-bcd4-41e9-82d5-ee29cf8a30e2  Claim in safety — supported
      ├─ used  claim/d29242ca-5a82-4dbe-8804-f263b1f22330  Claim in safety — supported
      ├─ used  claim/b65af2d8-e6ac-4b14-8724-15a075ffd043  Claim in summary — supported
      ├─ used  claim/d1870146-a9b7-4c18-a38d-df3cd87d2216  Claim in safety — supported
      ├─ used  claim/a2ca94ef-d201-496a-93ee-b61a6402caf4  Claim in safety — partially_supported
      ├─ used  claim/f3a11828-d99b-4abe-964a-e6ee3508da87  Claim in summary — inconclusive  working
      ├─ used  claim/b840d271-6cfb-4da5-b928-707f707f7970  Claim in safety — inconclusive  working
      ├─ used  claim/7bb31b05-b72b-4587-84a2-344a05c8f83f  Claim in safety — supported
      ├─ used  claim/e5b052f4-809d-4190-a286-2257ec778e28  Claim in safety — supported
      ├─ used  claim/482f894a-ab94-477f-92b5-fb72b4ac7406  Claim in safety — supported
      ├─ used  claim/94e6b522-58dd-45b5-9fa2-497144c85939  Claim in history — supported
      ├─ used  claim/ff48f2ad-03f4-4ce4-95de-64d66256307a  Claim in receptor-pharmacology — supported
      ├─ used  claim/f20d4f7d-3da4-4e10-a790-dd543626ca07  Claim in comparative-pharmacology — supported
      ├─ used  claim/d51c35de-d301-4d52-902e-8156a8e6d21e  Claim in neuroscience — supported
      ├─ used  claim/ed08bb75-63fd-4350-9f3e-ef3cfa275cfb  Claim in history — inconclusive  working
      ├─ used  claim/3340f469-123e-4451-895e-ac85a9474621  Claim in chemistry — inconclusive  working
      ├─ used  claim/890f2dc9-4710-4bae-8e71-38baa2969d81  Claim in chemistry — supported
      ├─ used  claim/8eda9730-2a19-4b88-92d5-99e6e7210a9c  Claim in comparative-pharmacology — supported
      ├─ used  claim/f647cd65-8006-47e2-b5e4-c449ad5e2bcd  Claim in pharmacokinetic-detail — supported
      ├─ used  claim/4a043982-be4e-4938-96a0-47ff9566d93f  Claim in safety — supported
      ├─ used  claim/632afacc-725c-4956-a010-7d772a63e642  Claim in receptor-pharmacology — supported
      ├─ used  claim/07205e83-97d0-42a1-8717-0920e4185ffd  Claim in receptor-pharmacology — supported
      ├─ used  claim/b5707a41-3abd-419a-ad9b-797d7ca8f514  Claim in pharmacokinetic-detail — supported
      ├─ used  claim/7965211c-95e4-46bc-9d8f-b08bc7a1f990  Claim in pharmacokinetic-detail — supported
      ├─ used  claim/55badc6f-494e-48f2-a132-fed751dffb62  Claim in safety — inconclusive  working
      ├─ used  claim/a3f902ff-14c0-4200-8954-ca952bcf97a6  Claim in safety — partially_supported
      ├─ used  claim/35eeecf8-51b5-4546-812d-e0364585fce4  Claim in safety — not_supported  working
      ├─ used  claim/49c4c312-3194-47a1-bf31-c16b0d496d70  Claim in safety — supported
      └─ used  claim/a434bfa0-c41d-4a12-a2be-ff4a0af29bad  Claim in safety — supported
… closure truncated at 200 nodes

indented by distance from this node, not by parentage

1Provenance card

the boundary, as counts

Sources

2721 with DOI

4 strong · 16 moderate · 7 weak

Compilations

12026-04-26T13:51:46.735Z

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

Decisions

31last ruled 2026-06-04

0 awaiting a ruling

Issued documents

62026-10-19T20:29:49.295Z

notice · info card · emergency

Searches

200 with no results

queries and counts on the build

Claims checked

7060 supported

60 supported · 10 not

Correspondence

0received

consent field ships in Phase 4

Edges

235

derivations recorded for this entity

Complete over 27 sources, 1 compilation, and 31 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/4-aco-dipt/archive

2Build

one panel per compilation run

generation run 2026-04-26

64 min completedmodel pipeline-v5plan not recordedrun/265d510b…

Selection

results seen74
selected by the model42
consumed as sources27

Verification

claims checked70
supported50
partially supported10
not supported1
inconclusive9
  • record
  • seen / partial
  • working

The model's own caveats

none raised on this run

Reproduce

inputs
27 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
20 searches — query, source, results, what was kept and why
20 searches for this run
#sourcequeryseenkeptrationale
1ClinicalTrials.gov4-OH-DiPT OR 4-hydroxy-diisopropyltryptamine OR RE10455RE104 is a prodrug of 4-OH-DiPT, the active metabolite of 4-AcO-DiPT - highly relevant clinical data
2OpenAlex4-AcO-DiPT tryptamine psychedelic pharmacology104Landmark papers on tryptamine pharmacology
3PubMedShulgin tryptamine synthesis diisopropyltryptamine102Cozzi 2009 involves Shulgin as co-author and tests DiPT at SERT
4PubMed4-OH-DiPT OR 4-hydroxy-N,N-diisopropyltryptamine pharmacology serotonin334-OH-DiPT is the active metabolite of 4-AcO-DiPT - directly relevant pharmacology
5PubChem4-AcO-DiPT by name11Primary chemical identity verification
6PubMedtryptamine metabolism acetoxy 4-AcO hydrolysis psilocin prodrug11Informs likely metabolic pathway of 4-AcO-DiPT by analogy
7PubMed4-AcO-DiPT OR 4-acetoxy-dipropyltryptamine OR dipropyltryptamine acetate pharmacology11Direct pharmacology study including 4-AcO-DiPT
8PMC/PubMed—11Critical finding on metabolic pathway
9Erowid TIHKAL via isomerdesign.com—11Shulgin documentation of 4-HO-DiPT history
10PubChemCID 24801868 full record11Chemical identity verification for seed data cross-check
11ClinicalTrials.govRE10455Active clinical program for 4-OH-DiPT prodrug validates pharmacological profile
12Federal Register / DEA—12Critical legal status finding - proposed scheduling withdrawn
13Web search4-AcO-DiPT legal status Japan UK Germany Sweden Australia104Legal status across major jurisdictions
14PubMed4-acetoxy diisopropyltryptamine metabolism hepatocyte11Critical paper - only dedicated 4-AcO-DiPT metabolism study
15Erowid TIHKAL—11Primary source for synthesis history and human effects of 4-OH-DiPT (active metabolite)
16PubMedpsychedelic serotonin 5-HT2A receptor downregulation tolerance mechanism hallucinogen21Mechanism of psychedelic tolerance relevant to seed data claims
17PubMed5-MeO-DiPT adverse events fatality rhabdomyolysis neurotoxicity clinical22Closest structural analog with neurotoxicity data; important safety distinction
18Web search4-AcO-DiPT Germany NpSG Canada Australia legal status104Completing legal status across major jurisdictions
19Multiple sources4-AcO-DiPT CAS number51CAS number not in seed data - verified from multiple commercial sources
20PubMedtolerance cross-tolerance head twitch response tryptamine phenethylamine hallucinogen31DIPT-specific tolerance data directly relevant to 4-AcO-DiPT
70 claims by section — every cited sentence, checked against its source
safety18 · 15 ok
  • Claim in safety — inconclusiveinconclusiveworking →

  • 4-OH-DiPT demonstrates strong agonist activity at 5-HT₂B receptorssupported

    near full agonist at 5-HT2A/2B/2C s41386-023-01744-8

  • 5-MeO-DiPT, a structurally related but pharmacologically distinct compound, produces neurotoxicity in rats at doses of 5–20 mg/kg: increased extracellular dopamine, serotonin, and glutamate; decreased dopamine tissue content suggesting terminal damage; and DNA strand breaks persisting for 60 dayspartially supported

    Adolescent repeated 5-MeO-DIPT exposure: altered DA, 5-HT, glutamate in adult rats; caspase-3 activation; oxidative DNA damage. Long-term neurotoxicity in developing brain. s11419-018-0433-x

  • This neurotoxicity is attributed to 5-MeO-DiPT's potent SERT inhibition and serotonin-releasing properties — a mechanism analogous to MDMA. 4-AcO-DiPT/4-OH-DiPT has a different pharmacological profile: its SERT interaction is weaker, and its primary mechanism is 5-HT₂A agonismsupported

    All novel tryptamines were partial or full 5-HT2A agonists. 4-OH-DiPT and DiPT interacted with SERT and partially NET. j.euroneuro.2016.05.001

  • Claim in safety — not_supportednot supportedworking →

  • Hallucinogen persisting perception disorder (HPPD) — persistent visual disturbances following serotonergic psychedelic use have been documented for the broader class. Muller et al. (2022) characterized flashback phenomena in controlled psilocybin and LSD studies, finding low incidence under supervised conditions. No substance-specific HPPD data exist for 4-AcO-DiPT.supported

    HPPD characterization in phase I trials of LSD and psilocybin in healthy volunteers. s00213-022-06066-z

  • De la Fuente Revenga et al. (2022) demonstrated this mechanism for the DOI-induced head twitch response, showing it is β-arrestin-2 independent and specific to psychedelic (not non-psychedelic) 5-HT₂A agonistssupported

    Tolerance to psychedelic HTR involves 5-HT2A receptor downregulation; not observed with non-psychedelic 5-HT2A agonists; β-arrestin-2 independent mechanism. acschemneuro.2c00170

  • Smith et al. (2014) found that DiPT — the N,N-diisopropyl backbone of 4-AcO-DiPT — does not develop tolerance to the head twitch response with daily dosing in mice, unlike the phenethylamine hallucinogens DOI and 2C-T-7supported

    DIPT and DPT do NOT develop tolerance to HTR with daily dosing in mice (unlike DOI/2C-T-7). jpet.114.219337

  • Cross-tolerance with other serotonergic psychedelics (psilocybin, LSD, mescaline) is supported by shared 5-HT₂A receptor downregulationsupported

    Tolerance to psychedelic HTR involves 5-HT2A receptor downregulation; not observed with non-psychedelic 5-HT2A agonists. acschemneuro.2c00170

  • Cross-tolerance with other serotonergic psychedelics (psilocybin, LSD, mescaline) is supported by shared 5-HT₂A receptor downregulationpartially supported

    DIPT and DPT do NOT develop tolerance to HTR with daily dosing in mice (unlike DOI/2C-T-7). DOI-tolerant mice show cross-tolerance to DPT. jpet.114.219337

  • Claim in safety — inconclusiveinconclusiveworking →

  • Given DiPT's documented SERT substrate behavior and 4-OH-DiPT's SERT interaction, co-administration with MAOIs could substantially increase synaptic serotonin levels and precipitate serotonin syndrome — a potentially fatal condition characterized by hyperthermia, neuromuscular excitability, and autonomic instability.supported

    DiPT KI for SERT = 2.32 ± 0.46 µM. All tryptamines show substrate (not blocker) behavior at both transporters. s00702-009-0308-8

  • Given DiPT's documented SERT substrate behavior and 4-OH-DiPT's SERT interaction, co-administration with MAOIs could substantially increase synaptic serotonin levels and precipitate serotonin syndrome — a potentially fatal condition characterized by hyperthermia, neuromuscular excitability, and autonomic instability.supported

    4-OH-DiPT and DiPT interacted with SERT and partially NET. j.euroneuro.2016.05.001

  • The combination elevates serotonin syndrome risk through dual serotonergic mechanismssupported

    Review of tramadol-serotonergic drug interactions and serotonin syndrome risk. 0897190013504957

  • While chronic SSRI use typically attenuates psychedelic effects through 5-HT₂A receptor downregulation, the SERT substrate properties of the DiPT class add pharmacological complexity: SSRIs block the transporter through which DiPT-class compounds enter neurons.supported

    All tryptamines show substrate (not blocker) behavior at both transporters. s00702-009-0308-8

  • DiPT-class compounds inhibit CYP2D6 in vitro at IC₅₀ < 100 µMsupported

    DiPTs inhibit CYP2D6 below 100µM. j.toxlet.2015.11.013

  • Concurrent MAOI use — critical serotonin syndrome risk given SERT substrate properties of the DiPT class.supported

    All tryptamines show substrate (not blocker) behavior at both transporters. s00702-009-0308-8

  • Cardiac conditions — 4-OH-DiPT's 5-HT₂B agonism represents an unstudied risk for individuals with pre-existing valvular disease or conditions sensitive to serotonergic cardiac effects.supported

    near full agonist at 5-HT2A/2B/2C s41386-023-01744-8

pharmacology10 · 9 ok
  • Human hepatocyte metabolism data confirm that the sole first-generation metabolite is 4-OH-DiPT, formed by ester hydrolysis of the acetate group; all subsequent metabolites derive from this intermediatepartially supported

    Primary pathway: ester hydrolysis to 4-OH-DiPT. N-oxidation and N-dealkylation. Biomarkers: 4-OH-DiPT, 4-OH-iPT, 4-OH-DiPT-N-oxide. metabo12080705

  • Recommended forensic biomarkers for confirming 4-AcO-DiPT consumption are 4-OH-DiPT, 4-OH-iPT (N-deisopropylated metabolite), and 4-OH-DiPT-N-oxide.supported

    Biomarkers: 4-OH-DiPT, 4-OH-iPT, 4-OH-DiPT-N-oxide. metabo12080705

  • Kelly et al. (2024) profiled 4-OH-DiPT at all 12 human serotonin GPCRs, identifying strongest agonist activity at 5-HT₂A, 5-HT₂B, and 5-HT₂C receptors, with comparable activity at both mouse and human receptor orthologspartially supported

    Profiled 4-OH-DiPT at all 12 human 5-HT GPCRs; near full agonist at 5-HT2A/2B/2C. s41386-023-01744-8

  • Multiple tryptamine psychedelics including diisopropyl-substituted analogs also target 5-HT₁A; at high doses, 5-HT₁A agonism attenuates the 5-HT₂A-mediated head twitch response in mice.partially supported

    Multiple serotonin receptors targeted including 5-HT1A. acsptsci.2c00222

  • Claim in pharmacology — inconclusiveinconclusiveworking →

  • 4-OH-DiPT and DiPT interact with the serotonin transporter (SERT) and partially with the norepinephrine transporter (NET) — a pattern similar to MDMA but distinct from LSD and mescaline, which do not interact with SERTsupported

    4-OH-DiPT and DiPT interacted with SERT and partially NET. Binding affinity correlated with psychoactive dose in humans. j.euroneuro.2016.05.001

  • Cozzi et al. (2009) demonstrated that DiPT (the N,N-diisopropyl backbone) is a SERT substrate (not a blocker): K_I for SERT = 2.32 ± 0.46 µM; K_I for VMAT2 = 19 ± 3.1 µMsupported

    DiPT KI for SERT = 2.32 ± 0.46 µM; VMAT2 = 19 ± 3.1 µM. All tryptamines show substrate (not blocker) behavior at both transporters. s00702-009-0308-8

  • For 4-OH-DiPT, plasma half-life was approximately 40 minutes after subcutaneous administration of RE104 (a glutarate ester prodrug) in ratssupported

    Half-life of 4-OH-DiPT 40 min after s.c. RE104 in rats. acschemneuro.4c00058

  • Shulgin reported 4-OH-DiPT duration as 2–3 hours oral; the 3–4 hour total duration observed with 4-AcO-DiPT is consistent with additional lag time from prodrug hydrolysis.supported

    Short duration (2-3h) psychedelic effects. acschemneuro.4c00058

  • DiPT-class compounds inhibit CYP2D6 at IC₅₀ values below 100 µM in vitrosupported

    DiPTs inhibit CYP2D6 below 100µM. j.toxlet.2015.11.013

summary10 · 8 ok
  • It occupies a distinctive niche within the 4-substituted tryptamine series: brief total duration (3–4 hours oral), moderate potency (common dose 15–30 mg oral), and rapid onset (15–40 minutes) — making it among the shortest-acting members of its structural class.supported

    Short duration (2-3h) psychedelic effects. acschemneuro.4c00058

  • Claim in summary — inconclusiveinconclusiveworking →

  • 4-AcO-DiPT undergoes hepatic ester hydrolysis to 4-OH-DiPT as its sole first-generation metabolite. 4-OH-DiPT acts as a near-full agonist at the 5-HT₂A receptor, with additional agonism at 5-HT₂B and 5-HT₂C, and interacts with SERT and NET — a transporter profile more reminiscent of MDMA than classical psychedelicspartially supported

    Primary pathway: ester hydrolysis to 4-OH-DiPT. Phase II: glucuronidation, sulfation. N-oxidation and N-dealkylation. metabo12080705

  • 4-AcO-DiPT undergoes hepatic ester hydrolysis to 4-OH-DiPT as its sole first-generation metabolite. 4-OH-DiPT acts as a near-full agonist at the 5-HT₂A receptor, with additional agonism at 5-HT₂B and 5-HT₂C, and interacts with SERT and NET — a transporter profile more reminiscent of MDMA than classical psychedelicspartially supported

    Profiled 4-OH-DiPT at all 12 human 5-HT GPCRs; near full agonist at 5-HT2A/2B/2C. s41386-023-01744-8

  • 4-AcO-DiPT undergoes hepatic ester hydrolysis to 4-OH-DiPT as its sole first-generation metabolite. 4-OH-DiPT acts as a near-full agonist at the 5-HT₂A receptor, with additional agonism at 5-HT₂B and 5-HT₂C, and interacts with SERT and NET — a transporter profile more reminiscent of MDMA than classical psychedelicssupported

    All novel tryptamines were partial or full 5-HT2A agonists. 4-OH-DiPT and DiPT interacted with SERT and partially NET. j.euroneuro.2016.05.001

  • In mice, 4-OH-DiPT activates basolateral amygdala GABAergic interneurons via 5-HT₂A receptors, suppressing learned fear responses.supported

    Activated BLA interneurons via 5-HT2A to enhance GABAergic inhibition. Enhanced fear extinction in mice dose-dependently. s41386-023-01744-8

  • No LD₅₀ or controlled toxicity data exist for 4-AcO-DiPT or 4-OH-DiPT in any species. 4-OH-DiPT demonstrates strong 5-HT₂B agonism — a receptor target associated with cardiac valvulopathy under chronic activation — representing an unstudied riskpartially supported

    near full agonist at 5-HT2A/2B/2C s41386-023-01744-8

  • Tolerance operates through 5-HT₂A receptor downregulation, though rodent data for DiPT show attenuated tolerance development compared to phenethylamine hallucinogenssupported

    Tolerance to psychedelic HTR involves 5-HT2A receptor downregulation; not observed with non-psychedelic 5-HT2A agonists. acschemneuro.2c00170

  • Tolerance operates through 5-HT₂A receptor downregulation, though rodent data for DiPT show attenuated tolerance development compared to phenethylamine hallucinogenssupported

    DIPT and DPT do NOT develop tolerance to HTR with daily dosing in mice (unlike DOI/2C-T-7). jpet.114.219337

  • Claim in summary — inconclusiveinconclusiveworking →

neuroscience6 · 6 ok
  • Kelly et al. (2024) provided the most mechanistically detailed neuroscience data relevant to 4-AcO-DiPTsupported

    Profiled 4-OH-DiPT at all 12 human 5-HT GPCRs; near full agonist at 5-HT2A/2B/2C. Enhanced fear extinction in mice dose-dependently. Activated BLA interneurons via 5-HT2A to enhance GABAergic inhibition. s41386-023-01744-8

  • This interneuron-mediated inhibition of BLA output is proposed as the cellular mechanism by which 4-OH-DiPT suppresses learned fear: in a fear extinction paradigm, 4-OH-DiPT dose-dependently reduced freezing to conditioned cues, with greater potency in female mice than male mice.supported

    Enhanced fear extinction in mice dose-dependently. Activated BLA interneurons via 5-HT2A to enhance GABAergic inhibition. Sex differences in potency (female > male). s41386-023-01744-8

  • The 5-HT₂A receptor is densely expressed on layer V pyramidal neurons in the prefrontal cortex — the primary cellular trigger for psychedelic effects. 4-OH-DiPT's additional interactions with SERT and NET may produce entactogenic-type neural effects (reduced amygdala fear responses, enhanced prefrontal-limbic connectivity) overlaid on classical psychedelic phenomenology.supported

    All novel tryptamines were partial or full 5-HT2A agonists. 4-OH-DiPT and DiPT interacted with SERT and partially NET. j.euroneuro.2016.05.001

  • The 5-HT₂A receptor is densely expressed on layer V pyramidal neurons in the prefrontal cortex — the primary cellular trigger for psychedelic effects. 4-OH-DiPT's additional interactions with SERT and NET may produce entactogenic-type neural effects (reduced amygdala fear responses, enhanced prefrontal-limbic connectivity) overlaid on classical psychedelic phenomenology.supported

    All tryptamines show substrate (not blocker) behavior at both transporters. s00702-009-0308-8

  • No direct neuroplasticity data exist for 4-OH-DiPT, but the antidepressant-like effects observed with RE104 in the rat forced swim test — persisting 1 week post-administration — are consistent with structural plasticity rather than acute pharmacological action.supported

    Significant antidepressant effect in forced swim test at 1 week. acschemneuro.4c00058

  • What accounts for the sex difference in fear extinction potency (greater in female mice) observed by Kelly et al. (2024)? Estrogen-dependent modulation of 5-HT₂A receptor expression or downstream signaling may be involved.supported

    Sex differences in potency (female > male). s41386-023-01744-8

pharmacokinetic-detail6 · 6 ok
  • Dinger et al. (2016) demonstrated CYP2D6 inhibition by tryptamines of the diisopropyltryptamine class at IC₅₀ values below 100 µM in vitrosupported

    DiPTs inhibit CYP2D6 below 100µM. j.toxlet.2015.11.013

  • Caspar et al. (2018) identified CYP enzyme involvement in the metabolism of related N,N-diisopropyltryptamine compoundssupported

    CYP1A2, CYP2C19, CYP2D6, CYP3A4 involved in hydroxylation and N-dealkylation. dta.2197

  • Bryson et al. (2024) reported a plasma half-life of approximately 40 minutes for 4-OH-DiPT following subcutaneous administration of RE104 (a glutarate ester prodrug) in ratssupported

    Half-life of 4-OH-DiPT 40 min after s.c. RE104 in rats. acschemneuro.4c00058

  • Malaca et al. (2022) definitively mapped the metabolic pathway of 4-AcO-DiPT using human hepatocyte incubationsupported

    First dedicated 4-AcO-DiPT human hepatocyte metabolism study. metabo12080705

  • This pathway parallels that of other 4-acetoxy tryptamines: Zhai et al. (2022) demonstrated that 4-AcO-DMT undergoes predominant hydrolysis to psilocin via the same mechanism.supported

    hydrolysis to psilocin is most abundant pathway. dta.3255

  • In the absence of formal pharmacokinetic studies, duration estimates for oral 4-AcO-DiPT are triangulated from three sources: (1) Shulgin's TiHKAL report of 2–3 hours total for 4-OH-DiPT oral, (2) the approximately 40-minute rat plasma half-life from Bryson et al. (2024) — consistent with a short-acting compound, and (3) community-sourced data reporting 3–4 hours total for 4-AcO-DiPTsupported

    Half-life of 4-OH-DiPT 40 min after s.c. RE104 in rats. Short duration (2-3h) psychedelic effects. acschemneuro.4c00058

receptor-pharmacology6 · 6 ok
  • Kelly et al. (2024) provided the most comprehensive receptor characterization of 4-OH-DiPT, profiling functional activity at all 12 human serotonin GPCRs. 4-OH-DiPT demonstrated near-full agonist activity at 5-HT₂A, with strong agonism at 5-HT₂B and 5-HT₂Csupported

    Profiled 4-OH-DiPT at all 12 human 5-HT GPCRs; near full agonist at 5-HT2A/2B/2C. s41386-023-01744-8

  • Rickli et al. (2016) characterized 4-OH-DiPT binding and functional pharmacology at 5-HT₂A, 5-HT₂B, SERT, and NETsupported

    Investigated binding affinities at human monoamine receptors for DiPT, 4-OH-DiPT... All novel tryptamines were partial or full 5-HT2A agonists. 4-OH-DiPT and DiPT interacted with SERT and partially NET. j.euroneuro.2016.05.001

  • Specific Ki and EC₅₀ values for 4-OH-DiPT at individual receptors are reported in the full-text tables of this paper and in Kozell et al. (2023), but were not accessible via API during research; full-text consultation is recommended for numeric binding data.supported

    21 substituted tryptamines tested at 5-HT1A, 5-HT2A, 5-HT2C and SERT. jpet.122.001454

  • Kozell et al. (2023) measured pharmacological activity of 21 substituted tryptamines at 5-HT₂A, 5-HT₂C, 5-HT₁A, and SERT, finding that 4-substituted compounds showed high selectivity for 5-HT₂A.supported

    21 substituted tryptamines tested at 5-HT1A, 5-HT2A, 5-HT2C and SERT. 4-substituted compounds show high selectivity for 5-HT2AR. jpet.122.001454

  • Glatfelter et al. (2023) established that 4-acetoxy and 4-propionoxy analogs display somewhat weaker binding affinities than their corresponding 4-hydroxy analogs but retain similar target profiles across serotonin receptor subtypessupported

    4-Acetoxy analogs show weaker binding affinities but similar target profiles vs 4-hydroxy compounds. acsptsci.2c00222

  • Cozzi et al. (2009) characterized DiPT (the N,N-diisopropyl backbone) as a SERT substrate with K_I = 2.32 ± 0.46 µM and a VMAT2 substrate with K_I = 19 ± 3.1 µMsupported

    DiPT KI for SERT = 2.32 ± 0.46 µM; VMAT2 = 19 ± 3.1 µM. s00702-009-0308-8

comparative-pharmacology5 · 5 ok
  • Gatch et al. (2021) systematically compared substituted tryptamines in rat drug discrimination assayssupported

    Evaluated hallucinogen-like discriminative stimulus effects of eight novel substituted tryptamines including 4-AcO-DiPT and 4-OH-DiPT in DOM-trained rats. acsptsci.0c00173

  • Glatfelter et al. (2023) confirmed this pattern at the receptor level: 4-acetoxy and 4-propionoxy analogs display somewhat weaker binding affinities but retain similar target profiles compared to 4-hydroxy compounds.supported

    4-Acetoxy analogs show weaker binding affinities but similar target profiles vs 4-hydroxy compounds. acsptsci.2c00222

  • Bryson et al. (2024) specifically cited 4-OH-DiPT's shorter duration as a pharmacological advantage in clinical contexts — permitting completion of a psychedelic session within a single clinical day without extended monitoring required by longer-acting compounds.supported

    Short duration (2-3h) psychedelic effects. acschemneuro.4c00058

  • Unlike most classical serotonergic psychedelics, the DiPT class interacts with SERT and partially with NET — a profile more reminiscent of MDMA than LSD or mescalinesupported

    4-OH-DiPT and DiPT interacted with SERT and partially NET. Binding affinity correlated with psychoactive dose in humans. j.euroneuro.2016.05.001

  • Cozzi et al. (2009) demonstrated that DiPT is a SERT substrate (K_I = 2.32 ± 0.46 µM), and Rickli et al. (2016) confirmed this interaction for 4-OH-DiPTsupported

    DiPT KI for SERT = 2.32 ± 0.46 µM. s00702-009-0308-8

chemistry4 · 2 ok
  • As an acetate ester, 4-AcO-DiPT is hydrolyzed in vivo to yield 4-OH-DiPT — the pharmacologically active metabolitesupported

    Primary pathway: ester hydrolysis to 4-OH-DiPT. metabo12080705

  • The two isopropyl groups on the amine nitrogen create significant steric bulk compared to smaller N-alkyl tryptamines, contributing to reduced receptor binding potency relative to dimethyl, diethyl, and mixed N-alkyl analogs.supported

    N,N-diisopropyl compounds less potent than dimethyl/diethyl analogs. acsptsci.0c00173

  • Claim in chemistry — inconclusiveinconclusiveworking →

  • Claim in chemistry — inconclusiveinconclusiveworking →

history4 · 2 ok
  • Claim in history — inconclusiveinconclusiveworking →

  • Bryson et al. (2024) confirmed RE104 produces antidepressant-like effects in the rat forced swim test (1 mg/kg subcutaneous, p < 0.001 vs. vehicle at 1 week)partially supported

    Significant antidepressant effect in forced swim test at 1 week. acschemneuro.4c00058

  • Claim in history — inconclusiveinconclusiveworking →

  • Shulgin continued investigating the diisopropyltryptamine framework, co-authoring Cozzi et al. (2009), which demonstrated that DiPT functions as a substrate (not blocker) at both SERT and VMAT2.supported

    All tryptamines show substrate (not blocker) behavior at both transporters. s00702-009-0308-8

clinical-evidence1 · 1 ok
  • In preclinical work, Bryson et al. (2024) confirmed that RE104 produces antidepressant-like effects in the rat forced swim test (1 mg/kg subcutaneous, p < 0.001 vs. vehicle at 1 week post-administration).partially supported

    Significant antidepressant effect in forced swim test at 1 week. acschemneuro.4c00058

3Sources

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

Sources
yearsourcetierstatusfeeds
20244-AcO-DiPT - PsychonautWikiPsychonautWiki contributorsurl:3218de26972bd1c4weakconsumedcited only
20244-AcO-DiPT - WikipediaWikipedia contributorsurl:34b3884f6fcac7ffweakconsumedcited only
2024Psilocybin analog 4-OH-DiPT enhances fear extinction and GABAergic inhibition of principal neurons in the basolateral amygdalaKelly TJ, Bonniwell EM, Mu L, Liu X, Hu Y, Friedman V, Yu H, Su W, McCorvy JD, Liu QS · Neuropsychopharmacologydoi:10.1038/s41386-023-01744-8moderateconsumed5 sections
2024RE104 Safety and Efficacy Study in Adjustment Disorder in Cancer and Other Medical IllnessesReunion Neuroscience Inc.url:40f6389b73d7d95aweakconsumedcited only
2024RE104 Safety and Efficacy Study in Postpartum DepressionReunion Neuroscience Inc.url:84f60252f7e47e61weakconsumedcited only
2024RE104: Synthesis and Activity of a Novel Serotonergic Psychedelic Prodrug of 4-Hydroxy-N,N-diisopropyltryptamineBryson N, Alexander R, Asnis-Alibozek A, Ehlers MD · ACS Chemical Neurosciencedoi:10.1021/acschemneuro.4c00058moderateconsumed7 sections
2023Pharmacologic Activity of Substituted Tryptamines at 5-HT2A, 5-HT2C, 5-HT1A Receptors and SERTKozell LB, Eshleman AJ, Swanson TL, Bloom SH, Wolfrum KM, et al. · Journal of Pharmacology and Experimental Therapeuticsdoi:10.1124/jpet.122.001454moderateconsumed1 section
2023Receptor Binding Profiles for Tryptamine Psychedelics and Effects of 4-Propionoxy-N,N-dimethyltryptamine in MiceGlatfelter GC, Naeem M, Pham DNK, Golen JA, Chadeayne AR, Manke DR, Baumann MH · ACS Pharmacology & Translational Sciencedoi:10.1021/acsptsci.2c00222strongconsumed4 sections
2022Flashback phenomena after administration of LSD and psilocybin in controlled studies with healthy participantsMüller F, Kraus E, Holze F, Becker A, Ley L, Schmid Y, Vizeli P, Liechti ME, Borgwardt S · Psychopharmacologydoi:10.1007/s00213-022-06066-zstrongconsumed1 section
2022Human Hepatocyte 4-Acetoxy-N,N-Diisopropyltryptamine Metabolite Profiling by LC-HRMS/MSMalaca S, Huestis MA, Lattanzio L, Marsella LT, Tagliabracci A, Carlier J, Busardo FP · Metabolitesdoi:10.3390/metabo12080705moderateconsumed4 sections
2022Reports of Adverse Events Associated with Use of Novel Psychoactive Substances, 2017–2020: A ReviewMohr ALA, Logan BK, Fogarty MF, Krotulski AJ, Papsun DM, et al. · Journal of Analytical Toxicologydoi:10.1093/jat/bkac023moderateconsumed1 section
2022Schedules of Controlled Substances: Placement of 4-OH-DiPT, 5-MeO-AMT, 5-MeO-MiPT, 5-MeO-DET, DiPT in Schedule I [Proposed Rule - Withdrawn]US Drug Enforcement Administrationurl:7f3e275458a7f5f1weakconsumedcited only
2022Tentative identification of in vitro metabolites of O-acetylpsilocin (psilacetin, 4-AcO-DMT) by UHPLC-Q-Orbitrap MSZhai W, Li L, Zhao J, Xiang P, Liu M, Shi Y, Dang Y · Drug Testing and Analysisdoi:10.1002/dta.3255strongconsumed1 section
2022Tolerance and Cross-Tolerance among Psychedelic and Nonpsychedelic 5-HT2A Receptor Agonists in Micede la Fuente Revenga M, Jaster AM, McGinn J, Silva G, Saha S, Gonzalez-Maeso J · ACS Chemical Neurosciencedoi:10.1021/acschemneuro.2c00170moderateconsumed2 sections
2021Discriminative Stimulus Effects of Substituted Tryptamines in RatsGatch MB, Hoch A, Carbonaro TM · ACS Pharmacology & Translational Sciencedoi:10.1021/acsptsci.0c00173moderateconsumed2 sections
2019Effects of exposure to 5-MeO-DIPT during adolescence on brain neurotransmission and neurotoxicity in adult ratsNoworyta-Sokolowska K, Kaminska K, Rzemieniec J, Wnuk A, Wojcieszak J, Gorska AM, Kreiner G, Kajta M, Golembiowska K · Forensic Toxicologydoi:10.1007/s11419-018-0433-xmoderateconsumed1 section
2018Metabolism of the tryptamine-derived new psychoactive substances 5-MeO-2-Me-DALT, 5-MeO-2-Me-ALCHT, and 5-MeO-2-Me-DIPT and their detectability in urineCaspar AT, Gaab JB, Michely JA, Brandt SD, Meyer MR, Maurer HH · Drug Testing and Analysisdoi:10.1002/dta.2197moderateconsumed1 section
2017PeakAL: Protons I Have Known and Loved, Too - Another Fifty Shades of Grey-Market Spectra. Supplementary DataChapman SJ · IsomerDesign Technical Reportdoi:10.16889/isomerdesign-5-suppmoderateconsumed2 sections
2016Cytochrome P450 inhibition potential of new psychoactive substances of the tryptamine classDinger J, Woods C, Brandt SD, Meyer MR, Maurer HH · Toxicology Lettersdoi:10.1016/j.toxlet.2015.11.013moderateconsumed3 sections
2016Receptor interaction profiles of novel psychoactive tryptamines compared with classic hallucinogensRickli A, Moning OD, Hoener MC, Liechti ME · European Neuropsychopharmacologydoi:10.1016/j.euroneuro.2016.05.001strongconsumed6 sections
2015Recreational use, analysis and toxicity of tryptamines.Tittarelli R, Mannocchi G, Pantano F, Romolo FS · Current neuropharmacologydoi:10.2174/1570159x13666141210222409moderateconsumedcited only
2014Hallucinogen persisting perception disorder and the serotonergic system: a comprehensive review including new MDMA-related clinical casesLitjens RP, Brunt TM, Alderliefste GJ, Westerink RH · European Neuropsychopharmacologydoi:10.1016/j.euroneuro.2014.05.008moderateconsumed1 section
2014Serotonin syndrome: is it a reason to avoid the use of tramadol with antidepressants?Park SH, Wackernah RC, Stimmel GL · Journal of Pharmacy Practicedoi:10.1177/0897190013504957weakconsumed1 section
2014Tolerance and cross-tolerance to head twitch behavior elicited by phenethylamine- and tryptamine-derived hallucinogens in mice.Smith DA, Bailey JM, Williams D, Fantegrossi WE · The Journal of pharmacology and experimental therapeuticsdoi:10.1124/jpet.114.219337moderateconsumed2 sections
2009Dimethyltryptamine and other hallucinogenic tryptamines exhibit substrate behavior at the serotonin uptake transporter and the vesicle monoamine transporter.Cozzi NV, Gopalakrishnan A, Anderson LL, Feih JT, Shulgin AT, Daley PF, Ruoho AE · Journal of neural transmissiondoi:10.1007/s00702-009-0308-8moderateconsumed6 sections
1997TiHKAL Chapter 4 (DIPT) - Erowid Online BooksShulgin AT, Shulgin Aurl:964fa07ee104a963weakconsumedcited only
1977Psilocin analogs. 1. Synthesis of 3-[2-(dialkylamino)ethyl]-and 3-[2-(cycloalkylamino)ethyl] indol-4-olsRepke D, Ferguson W, Bates D · Journal of Heterocyclic Chemistrydoi:10.1002/jhet.5570140113moderateconsumed2 sections

4Docket

one filing per activity — decisions, correspondence, reports

  1. 0012026-04-26revisionRevision 1

    Initial LLM generation (v5 pipeline, wiki)

    psx:substance/4-aco-dipt/version/1
  2. 0022026-06-04proposal29 value proposals approved together

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

    29 items in this filing

    • dose_tier · light
    • dose_tier · common
    • dose_tier · strong
    • dose_tier · heavy
    • timeline · oral · onset
    • timeline · oral · come_up
    • timeline · oral · peak
    • timeline · oral · resolution
    • timeline · oral · afterglow
    • toxicity
    • dependence · full
    • withdrawal
    • tolerance
    • dosage · oral
    • duration · oral · onset
    • duration · oral · come_up
    • duration · oral · peak
    • duration · oral · offset
    • duration · oral · total
    • duration · oral · aftereffects
    • contraindication · psychiatric
    • contraindication · psychiatric
    • contraindication · other
    • contraindication · other
    • contraindication · cardiovascular
    • contraindication · neurological
    • contraindication · pregnancy_breastfeeding
    • contraindication · metabolic
    psx:substance/4-aco-dipt/proposal/dose_tier/641a3ab5-5d72-4d7a-a6f0-0e342740f884
  3. 0032026-06-04publicationPublication — backfill

5Issued documents

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

Issued documents
documentcontent hashissuedfrom versionsuperseded
emergencyc15c760aabf6f0fcf5b6fc6b…2026-10-19 20:29Revision 1current
info_card0dfa88bbb633d8fb19f0bff8…2026-10-19 20:29Revision 1current
noticef069a9dea47b308467344618…2026-10-19 20:29Revision 1current
emergency3f0909c25c714d225b4bb3e3…2026-09-04 04:27Revision 1superseded2026-10-19
info_card387ce0fb3225cc175936a42e…2026-09-04 04:27Revision 1superseded2026-10-19
notice64878b43a1d2932a5305f55b…2026-09-04 04:27Revision 1superseded2026-10-19