12-Methoxy-LSD

12-Methoxy-LSD
Clinical data
Other names12-MeO-LSD; "5-MeO-LSD"; "5-Methoxy-LSD"; 9,10-Didehydro-N,N-diethyl-6-methyl-12-methoxyergoline-8β-carboxamide
Drug classSerotonin receptor modulator
Identifiers
  • (6aR,9R)-N,N-diethyl-1-methoxy-7-methyl-6,6a,8,9-tetrahydro-4H-indolo[4,3-fg]quinoline-9-carboxamide
CAS Number
PubChem CID
ChemSpider
CompTox Dashboard (EPA)
Chemical and physical data
FormulaC21H27N3O2
Molar mass353.466 g·mol−1
3D model (JSmol)
  • CCN(CC)C(=O)[C@H]1CN([C@@H]2CC3=CNC4=C3C(=C(C=C4)OC)C2=C1)C
  • InChI=1S/C21H27N3O2/c1-5-24(6-2)21(25)14-9-15-17(23(3)12-14)10-13-11-22-16-7-8-18(26-4)20(15)19(13)16/h7-9,11,14,17,22H,5-6,10,12H2,1-4H3/t14-,17-/m1/s1
  • Key:AYFDTTGGASATFS-RHSMWYFYSA-N

12-Methoxy-LSD is a drug of the ergoline and lysergamide families and a derivative of lysergic acid diethylamide (LSD). In terms of chemical structure, 12-methoxy-LSD is to LSD as 5-MeO-DMT is to dimethyltryptamine (DMT), with 12-methoxy-LSD notably containing 5-MeO-DMT within its rigidified structure. Both 12-methoxy-LSD and its analogue 12-hydroxy-LSD have been described as non-hallucinogenic in humans. However, in other more recent reports, 12-hydroxy-LSD produced psychedelic-like effects in rodents and was said to have similar activity as LSD in humans.