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1B-LSD

1-butanoyl-d-lysergic acid diethylamide

1Provenance card

the boundary, as counts

Sources

3230 with DOI

10 strong · 16 moderate · 6 weak

Compilations

12026-04-28T06:12:24.316Z

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

Decisions

31last ruled 2026-06-04

0 awaiting a ruling

Issued documents

62026-10-19T20:28:29.568Z

notice · info card · emergency

Searches

201 with no results

queries and counts on the build

Claims checked

8765 supported

65 supported · 22 not

Correspondence

0received

consent field ships in Phase 4

Edges

274

derivations recorded for this entity

Complete over 32 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/1b-lsd/archive

Timeline

what happened, newest first — claims, searches and artifacts stay inside Build

  1. 2026-10-19issueIssued emergency
  2. 2026-10-19issueIssued info_card
  3. 2026-10-19issueIssued notice
  4. 2026-09-07srcPharmacokinetics and Pharmacodynamics of Lysergic Acid Diethylamide Microdoses in Healthy Participants
  5. 2026-09-07srcAcute Effects and Pharmacokinetics of LSD after Paroxetine or Placebo Pre-Administration in a Randomized, Double-Blind, Cross-Over Phase I Trial
  6. 2026-09-07srcPsychedelics as Medicines: An Emerging New Paradigm
  7. 2026-09-07srcReturn of the lysergamides. Part I: Analytical and behavioural characterization of 1-propionyl-d-lysergic acid diethylamide (1P-LSD)
  8. 2026-09-07srcReturn of the lysergamides. Part II: Analytical and behavioural characterization of N6-allyl-6-norlysergic acid diethylamide (AL-LAD) and (2'S,4'S)-lysergic acid 2,4-dimethylazetidide (LSZ)
  9. 2026-09-07srcReturn of the lysergamides. Part V: Analytical and behavioural characterization of 1-butanoyl-d-lysergic acid diethylamide (1B-LSD)
  10. 2026-09-07srcReturn of the lysergamides. Part VI: Analytical and behavioural characterization of 1-cyclopropanoyl-d-lysergic acid diethylamide (1CP-LSD)
  11. 2026-09-07srcAnalytical and behavioral characterization of 1-dodecanoyl-LSD (1DD-LSD)
  12. 2026-09-07srcAnalytical and behavioral characterization of 1-hexanoyl-LSD (1H-LSD)
  13. 2026-09-07srcAnalytical and Pharmacological Characterization of 1-(Furan-2-Carbonyl)-LSD (1F-LSD) and Comparison With 1-(Thiophene-2-Carbonyl)-LSD (1T-LSD)
  14. 2026-09-07srcThe toxicity of psychedelic LSD derivatives: in silico approach for 1cP-LSD and analogs
  15. 2026-09-07srcSafety pharmacology of acute LSD administration in healthy subjects
  16. 2026-09-07srcPharmacokinetics and Pharmacodynamics of Lysergic Acid Diethylamide in Healthy Subjects
  17. 2026-09-07srcCytochrome P450 enzymes contribute to the metabolism of LSD to nor-LSD and 2-oxo-3-hydroxy-LSD: Implications for clinical LSD use
  18. 2026-09-07srcCrystal Structure of an LSD-Bound Human Serotonin Receptor
  19. 2026-09-07srcStructure of a Hallucinogen-Activated Gq-Coupled 5-HT2A Serotonin Receptor
  20. 2026-09-07srcPharmacological and biotransformation studies of 1-acyl-substituted derivatives of d-lysergic acid diethylamide (LSD)
  21. 2026-09-07srcCorrelation between the potency of hallucinogens in the mouse head-twitch response assay and their behavioral and subjective effects in other species
  22. 2026-09-07srcAdverse events associated with classic psychedelics and MDMA: a real-world population-based study using WHO pharmacovigilance database (VigiBase)
  23. 2026-09-07srcTolerance and Cross-Tolerance among Psychedelic and Nonpsychedelic 5-HT2A Receptor Agonists in Mice
  24. 2026-09-07srcAcute dose-dependent effects of lysergic acid diethylamide in a double-blind placebo-controlled study in healthy subjects
  25. 2026-09-07srcPharmacological and non-pharmacological predictors of the LSD experience in healthy participants
  26. 2026-09-07srcGenetic influence of CYP2D6 on pharmacokinetics and acute subjective effects of LSD in a pooled analysis
  27. 2026-09-07srcA cluster of lysergic acid diethylamide (LSD) poisonings following insufflation of a white powder sold as cocaine
  28. 2026-09-07srcPharmacokinetics and Concentration-Effect Relationship of Oral LSD in Humans
  29. 2026-09-07srcThe pharmacology of lysergic acid diethylamide: a review
  30. 2026-09-07srcPsychedelics
  31. 2026-09-07srcSerotonin syndrome: is it a reason to avoid the use of tramadol with antidepressants?
  32. 2026-09-07srcHallucinogenic Persisting Perception Disorder: A Case Series and Review of the Literature
  33. 2026-09-07srcHallucinogen-Persisting Perception Disorder in a 16-Year-Old Adolescent
  34. 2026-09-07src1B-LSD first market appearance August 2016
  35. 2026-09-07src1B-LSD
  36. 2026-09-04issueIssued emergency
  37. 2026-09-04issueIssued info_card
  38. 2026-09-04issueIssued notice
  39. 2026-06-04proposal29 value proposals approved togetherone review action inferred from a shared reviewer and instant — the graph records one activity per proposal
  40. 2026-06-04publicationPublication — backfill
  41. 2026-04-28revisionRevision 1
  42. 2026-04-28absenceSearched ClinicalTrials.gov for "1B-LSD lysergamide" — no results
  43. 2026-04-28genGeneration — pipeline-v5pipeline-v5
  44. 2026-04-28rungeneration run

The same entries, as forms: six forms.