1P-LSD

1P-LSD
Clinical data
Other names1-Propanoyl-lysergic acid diethylamide; 1-Propanoyl-LSD; 1-Propionyl-LSD
Routes of
administration
Oral
Drug classSerotonin receptor agonist; Serotonin 5-HT2A receptor agonist; Serotonergic psychedelic; Hallucinogen
ATC code
  • None
Legal status
Legal status
  • AU: S8 (Controlled drug)
  • BR: Class F2 (Prohibited psychotropics)
  • CA: Unscheduled.
  • DE: NpSG (Industrial and scientific use only)
  • UK: Under Psychoactive Substances Act
  • US: Unscheduled (may be considered illegal if sold for human consumption as an analog of LSD under the federal analogue act)
  • UN: Unscheduled
  • In general Unscheduled, unless that was sold for human consumption, could be sold for medical and research purposes.
Pharmacokinetic data
Bioavailability~100%
MetabolismHydrolysis
MetabolitesLSD
Elimination half-lifeInitial: ~0.2 hours
Duration of action8–12 hours
Identifiers
  • (6aR,9R)-N,N-diethyl-7-methyl-4-propanoyl-6,6a,8,9-tetrahydroindolo[4,3-fg]quinoline-9-carboxamide
CAS Number
PubChem CID
ChemSpider
UNII
CompTox Dashboard (EPA)
Chemical and physical data
FormulaC23H29N3O2
Molar mass379.504 g·mol−1
3D model (JSmol)
  • CCN(CC)C(=O)[C@H]1CN(C)[C@@H]2Cc3cn(C(=O)CC)c4cccc(C2=C1)c34
  • InChI=1S/C23H29N3O2/c1-5-21(27)26-14-15-12-20-18(17-9-8-10-19(26)22(15)17)11-16(13-24(20)4)23(28)25(6-2)7-3/h8-11,14,16,20H,5-7,12-13H2,1-4H3/t16-,20-/m1/s1
  • Key:JSMQOVGXBIDBIE-OXQOHEQNSA-N

1P-LSD, also known as 1-propionyl-LSD, is a psychedelic drug of the lysergamide family related to LSD. It is an ester derivative of LSD and a homologue of ALD-52 (1A-LSD). The drug originated in 2015 when it appeared as a designer drug sold online. It was first synthesized as a legal LSD alternative by Lizard Labs, a Netherlands based research chemical laboratory. It modifies the LSD molecule by adding a propionyl group to the nitrogen atom of LSD's indole group and is a prodrug of LSD.