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Lysergic acid diethylamide

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LSD, LSD-25
Lysergic acid diethylamide
Salts
[]
Lysergic acid diethylamide maleate
Generated by the Chemistry Development Kit (http://github.com/cdk)
Lysergic acid diethylamide tartrate
Generated by the Chemistry Development Kit (http://github.com/cdk)
Lysergic acid diethylamide hydrobromide
Generated by the Chemistry Development Kit (http://github.com/cdk)
Molecular structure via molpic based on CDK
Physical properties
[]
323.4 g/mol [1]
AppearancePointed prisms from benzene [1]
OdorOdorless [1]
TasteTasteless [1]
Melting point176 to 185 °F (NTP, 1992) [1]
DecompositionWhen heated to decomposition it emits toxic fumes of /nitrogen oxides/. [1]
SolubilityWater soluble [1]
3 [1]
Structural Identifiers
[]
C20H25N3O [1]
(6aR,9R)-N,N-diethyl-7-methyl-6,6a,8,9-tetrahydro-4H-indolo[4,3-fg]quinoline-9-carboxamide [1]
CCN(CC)C(=O)[C@H]1CN([C@@H]2CC3=CNC4=CC=CC(=C34)C2=C1)C [1]
InChI=1S/C20H25N3O/c1-4-23(5-2)20(24)14-9-16-15-7-6-8-17-19(15)13(11-21-17)10-18(16)22(3)12-14/h6-9,11,14,18,21H,4-5,10,12H2,1-3H3/t14-,18-/m1/s1 [1]
InChIKeyVAYOSLLFUXYJDT-RDTXWAMCSA-N [1]
Pharmacokinetics[]
Elimination half-life3.6 hours
Duration of actionOral administration|Oral: 7 – 12 (range 4 – 22) hoursIntramuscular injection, Intravenous injection, Intrathecal injection: 8 – 10 hours
Dosing[]
Sublingual
[]
Light≤ 0.2 mg(2x - 25%)
Common0.2 - 0.3 mg(4x - 50%)
Strong0.3 mg
Heavy0.3 - 0.5 mg(1x - 12.5%)
Extreme0.5 mg +(1x - 12.5%)
Oral
[]
Light≤ 0.2 mg(6x - 26.1%)
Common0.2 - 0.3 mg(7x - 30.4%)
Strong0.3 - 0.6 mg(4x - 17.4%)
Heavy0.6 - 0.8 mg(4x - 17.4%)
Extreme0.8 mg +(2x - 8.7%)
Statistically derived dosages via DBI-IGS
We do not take any responsibility for medical complications or loss of life sustained by following these dosages blindly.

Lysergic acid diethylamide (also known as Lysergide, Lysergic acid diethylamide, Lsd, N,N-Diethyllysergamide, Lysergsaeurediaethylamid, N,N-Diethyl-D-lysergamide, Lysergaure diethylamid, LSD-25, LSD 25 or Lisergide) is a psychedelic substance of the lysergamide class.

Chemistry

Salts []

Lysergic acid diethylamide is typically found in the form of its maleate, tartrate and hydrobromide salts.

 []

Lysergic acid diethylamide is a absolute mixture.

Subjective effects []

alina / Lysergic acid diethylamide []
Routes:
  • Sublingual (0.200mg)
bonzi / Lysergic acid diethylamide []
emily / Lysergic acid diethylamide []
Routes:
  • Oral (75 - 300μg)
x86pup / Lysergic acid diethylamide []
Routes:
  • Oral
  • Sublingual
magnus / Lysergic acid diethylamide []
Routes:
  • Oral
Mere / Lysergic acid diethylamide []
0xea / Lysergic acid diethylamide []
Routes:
  • Oral (150mcg)
Active Effects:Notes:
  • made me more concious of how dissociation influences my perception of reality
  • vulnerable animalistic perception of organic living beings
  • enabled understanding repressed part of myself

Experience reports []

There are currently 25+ experience reports involving lysergic acid diethylamide on :

 []

  • Australia: Lysergic acid diethylamide is a Schedule 9 substance.
  • Brazil: Lysergic acid diethylamide is a F2 substance.
  • Canada: Lysergic acid diethylamide is a Schedule III substance.
  • New Zealand: Lysergic acid diethylamide is a Class A substance.
  • United Kingdom: Lysergic acid diethylamide is a Class A substance.
  • United Nations: Lysergic acid diethylamide is a Schedule I drug under the "Convention on Psychotropic Substances 1971".
  • United States: Lysergic acid diethylamide is a Schedule I under the "Controlled Substances Act (CSA)".
  • Germany: Lysergic acid diethylamide is a Anlage I substance.

See also []

External links []

References []

  1. National Center for Biotechnology Information. PubChem Compound Summary for CID 5761, Lysergide. Accessed May 16, 2026. https://pubchem.ncbi.nlm.nih.gov/compound/5761

  2. U.S. Food and Drug Administration; National Center for Advancing Translational Sciences. Lysergic acid diethylamide. UNII: 8NA5SWF92O. Global Substance Registration System. Accessed May 16, 2026. https://gsrs.ncats.nih.gov/ginas/app/beta/substances/8NA5SWF92O