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You are currently exploring TiHKAL #26 LSD.
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#26 LSD
Variant: skeleton R1 R2 R6 N isomers all
Analogues: 4 4 2 9 31 7 57

Formula: C20H25N3O. PubChem ID: 5761. ChemSpider ID: 5558. Erowid: LSD. Wikipedia: Lysergic acid diethylamide.

See also PiHKAL: #5 ALEPH-4
#6 ALEPH-6
#7 ALEPH-7
#9 ASB
#21 3C-BZ
#25 3C-E
#28 2C-G-3
#30 2C-G-5
#31 2C-G-N
#41 2C-T-4
#43 2C-T-7
#52 DESOXY
#58 DMMDA
#62 DOB
#66 DOET
#67 DOI
#68 DOM
#69 Ψ-DOM
#79 F-2
#80 F-22
#81 FLEA
#97 4-MA
#100 MDA
#101 MDAL
#108 MDIP
#111 MDMEO
#118 MDPR
#125 META-DOT
#132 MMDA
#134 MMDA-3a
#156 4-TM
#160 TMA-4
#161 TMA-5
#170 5-TOET
See also TiHKAL: #1 AL-LAD
#2 DBT
#6 DMT
#9 DPT
#12 ETH-LAD
#16 4-HO-DET
#17 4-HO-DIPT
#18 4-HO-DMT
#19 5-HO-DMT
#28 4,5-MDO-DIPT
#37 5-MeO-DIPT
#48 α-MT
#51 PRO-LAD
#53 T

Shulgin, AT. LSD and pregnancy. @ Ask Dr. Shulgin Online, Center for Cognitive Liberty & Ethics, 28 Jan 2004.

Shulgin, AT. Morning glory seeds. @ Ask Dr. Shulgin Online, Center for Cognitive Liberty & Ethics, 17 Oct 2002.

Four skeleton analogues:
Analogue 1: With l-Lysergamide skeleton

l-LSD; l-Lysergic acid diethylamide

Formula: C20H25N3O. PubChem ID: 638252.

See also TiHKAL: #26 LSD
Analogue 2: With d-Isolysergamide skeleton

d-iso-LSD; d-iso-Lysergic acid diethylamide

Formula: C20H25N3O. PubChem ID: 638252. ChemSpider ID: 553804.

See also TiHKAL: #26 LSD
Analogue 3: With l-Isolysergamide skeleton

l-iso-LSD; l-iso-Lysergic acid diethylamide

Formula: C20H25N3O. PubChem ID: 5761.

See also TiHKAL: #26 LSD
Analogue 4: With d-Isolysergamide skeleton

Isoergine

Formula: C16H17N3O. PubChem ID: 12309749.

See also TiHKAL: #26 LSD
Four R1 analogues:
Analogue 1: Adding Acetyl at R1

ALD-52; 1-Acetyl-N,N-diethyllysergamide; 1-Acetyl-LSD

Formula: C22H27N3O2. PubChem ID: 201111. ChemSpider ID: 174121. Wikipedia: ALD-52.

See also TiHKAL: #26 LSD
Analogue 2: Adding Methyl at R1

MLD-41; N,N-Diethyl-1-methyllysergamide; 1-Methyl-LSD

Formula: C21H27N3O. PubChem ID: 165200. ChemSpider ID: 144824. Wikipedia: MLD-41.

See also TiHKAL: #26 LSD #48 α-MT
Analogue 3: Adding Hydroxymethyl at R1

OML-632; 1-Hydroxymethyl-LSD; N,N-Diethyl-1-hydroxymethyllysergamide

Formula: C21H27N3O2.

See also TiHKAL: #26 LSD
Analogue 4: Adding Dimethylaminomethyl at R1

1-Dimethylaminomethyl-LSD; N,N-Diethyl-1-dimethylaminomethyllysergamide

Formula: C23H32N4O.

See also TiHKAL: #26 LSD
Two R2 analogues:
Analogue 1: Adding Bromo at R2

BOL-148; 2-Bromo-N,N-diethyllysergamide; 2-Bromo-LSD

Formula: C20H24BrN3O. PubChem ID: 10171. ChemSpider ID: 9765.

See also TiHKAL: #26 LSD
Analogue 2: Adding Iodo at R2

2-Iodo-LSD; N,N-Diethyl-2-iodolysergamide

Formula: C20H24IN3O. PubChem ID: 151142. ChemSpider ID: 133214.

See also TiHKAL: #26 LSD
Nine R6 analogues:
Analogue 1: Substituting Allyl for Methyl at R6

AL-LAD; 6-Allyl-N,N-diethyl-6-norlysergamide; 6-Norlysergic acid, 6-allyl-N,N-diethylamide; 6-Norlysergamide, 6-allyl-N,N-diethyl; N,N-Diethylnorlysergamide, 6-allyl; N-(6)-Allylnorlysergic acid, N,N-diethylamide; 9,10-Didehydro-6-allyl-N,N-diethylergoline-8β-carboxamide; N-Allyl-nor-LSD

Formula: C22H27N3O. PubChem ID: 1872. ChemSpider ID: 21106248. Wikipedia: AL-LAD.

See also TiHKAL: #2 DBT #12 ETH-LAD #26 LSD
Analogue 2: Substituting Ethyl for Methyl at R6

ETH-LAD; 6-Norlysergic acid, 6,N,N-triethylamide; 6-Norlysergamide, 6,N,N-triethyl; 6,N,N-Triethyl-6-norlysergamide; N-(6)-Ethylnorlysergic acid, N,N-diethylamide; 9,10-Didehydro-N,N,6-triethylergoline-8β-carboxamide; N-Ethyl-nor-LSD

Formula: C21H27N3O. ChemSpider ID: 21106300. Wikipedia: ETH-LAD.

See also TiHKAL: #1 AL-LAD #26 LSD #51 PRO-LAD
Analogue 3: Substituting n-Propyl for Methyl at R6

PRO-LAD; N,N-Diethyl-6-propyl-6-norlysergamide; 6-Norlysergamide, N,N-diethyl-6-propyl; N,N-Diethylnorlysergamide, 6-propyl; 6-Propylnorlysergamide, N,N-diethyl; 9,10-Didehydro-6-propyl-N,N-diethylergoline-8β-carboxamide; 6-Propyl-nor-LSD

Formula: C22H29N3O. ChemSpider ID: 21106361. Wikipedia: PRO-LAD.

See also TiHKAL: #12 ETH-LAD #26 LSD
Analogue 4: Substituting Propargyl for Methyl at R6

PARGY-LAD; N-Propynyl-nor-LSD

Formula: C22H25N3O. ChemSpider ID: 21106360. Wikipedia: PARGY-LAD.

See also TiHKAL: #51 PRO-LAD
Analogue 5: Substituting n-Butyl for Methyl at R6

BU-LAD; N-Butyl-nor-LSD

Formula: C23H31N3O. ChemSpider ID: 21106266. Wikipedia: BU-LAD.

See also TiHKAL: #51 PRO-LAD
Analogue 6: Substituting Phenethyl for Methyl at R6

PHENETH-LAD; N-Phenethyl-nor-LSD

Formula: C27H31N3O.

See also TiHKAL: #51 PRO-LAD
Analogue 7: Removing Methyl at R6

nor-LSD; N,N-Diethyl-6-norlysergamide; d-nor-Lysergic acid diethylamide

Formula: C19H23N3O. PubChem ID: 169713. ChemSpider ID: 148419.

See also TiHKAL: #1 AL-LAD #12 ETH-LAD #51 PRO-LAD
Analogue 8: Substituting 2-(18F)-Fluoroethyl for Methyl at R6

FLUORETH-LAD; N-(2-(18F)Fluoroethyl)-nor-LSD

Formula: C21H26FN3O.

See also TiHKAL: #51 PRO-LAD
Analogue 9: Substituting Cyclopropyl for Methyl at R6

CYP-LAD; 6-Cyclopropyl-6-norlysergic acid diethylamide

Formula: C22H27N3O. ChemSpider ID: 21106273. Wikipedia: CYP-LAD.

31 N analogues:
Analogue 1: Removing Diethyl at N

LA-111; LSA; Ergine; d-Lysergamide

Formula: C16H17N3O. PubChem ID: 3016. ChemSpider ID: 390611. Erowid: LSA. Wikipedia: Ergine.

See also TiHKAL: #26 LSD
Analogue 2: Substituting Methyl for Diethyl at N

N-Methyllysergamide

Formula: C17H19N3O. ChemSpider ID: 21161369.

See also TiHKAL: #26 LSD
Analogue 3: Substituting Ethyl for Diethyl at N

LAE-32; N-Ethyllysergamide

Formula: C18H21N3O. PubChem ID: 12304966. ChemSpider ID: 19975296. Wikipedia: LAE-32.

See also TiHKAL: #26 LSD
Analogue 4: Substituting n-Propyl for Diethyl at N

N-Propyllysergamide

Formula: C19H23N3O.

See also TiHKAL: #26 LSD
Analogue 5: Substituting 1-Hydroxypropan-2-yl for Diethyl at N

Ergonovine; N-(1-Hydroxypropan-2-yl)lysergamide

Formula: C19H23N3O2. PubChem ID: 443884. ChemSpider ID: 390049. Wikipedia: Ergonovine.

See also TiHKAL: #26 LSD
Analogue 6: Substituting n-Butyl for Diethyl at N

N-Butyllysergamide

Formula: C20H25N3O. PubChem ID: 3039392. ChemSpider ID: 2302861.

See also TiHKAL: #26 LSD
Analogue 7: Substituting sec-Butyl for Diethyl at N

N-Butan-2-yllysergamide

Formula: C20H25N3O. Wikipedia: Lysergic acid 2-butyl amide.

See also TiHKAL: #26 LSD
Analogue 8: Substituting 1-Hydroxybutan-2-yl for Diethyl at N

Methergine; Methylergonovine; N-(1-Hydroxybutan-2-yl)lysergamide

Formula: C20H25N3O2. PubChem ID: 8226. ChemSpider ID: 102713. Wikipedia: Methylergonovine.

See also TiHKAL: #26 LSD
Analogue 9: Substituting n-Pentyl for Diethyl at N

N-Pentyllysergamide

Formula: C21H27N3O.

See also TiHKAL: #26 LSD
Analogue 10: Substituting Pentan-2-yl for Diethyl at N

N-Pentan-2-yllysergamide

Formula: C21H27N3O. PubChem ID: 10427207.

See also TiHKAL: #26 LSD
Analogue 11: Substituting Pentan-3-yl for Diethyl at N

N-Pentan-3-yllysergamide

Formula: C21H27N3O. PubChem ID: 10019984. ChemSpider ID: 8195557.

See also TiHKAL: #26 LSD
Analogue 12: Substituting n-Hexyl for Diethyl at N

N-Hexyllysergamide

Formula: C22H29N3O.

See also TiHKAL: #26 LSD
Analogue 13: Substituting Hexan-2-yl for Diethyl at N

N-Hexan-2-yllysergamide

Formula: C22H29N3O. PubChem ID: 10405716.

See also TiHKAL: #26 LSD
Analogue 14: Substituting n-Heptyl for Diethyl at N

N-Heptyllysergamide

Formula: C23H31N3O.

See also TiHKAL: #26 LSD
Analogue 15: Substituting Heptan-2-yl for Diethyl at N

N-Heptan-2-yllysergamide

Formula: C23H31N3O. PubChem ID: 10361495.

See also TiHKAL: #26 LSD
Analogue 16: Substituting Dimethyl for Diethyl at N

DAM-57; N,N-Dimethyllysergamide

Formula: C18H21N3O. PubChem ID: 199478. ChemSpider ID: 172668. Erowid: DAM-57. Wikipedia: DAM-57.

See also TiHKAL: #26 LSD
Analogue 17: Substituting Methyl and Ethyl for Diethyl at N

N-Ethyl-N-methyllysergamide

Formula: C19H23N3O.

See also TiHKAL: #26 LSD
Analogue 18: Substituting Methyl and n-Propyl for Diethyl at N

LMP; N-Methyl-N-propyllysergamide

Formula: C20H25N3O. PubChem ID: 497668.

See also TiHKAL: #26 LSD
Analogue 19: Substituting Methyl and Isopropyl for Diethyl at N

N-Isopropyl-N-methyllysergamide

Formula: C20H25N3O. Wikipedia: Methylisopropyllysergamide.

See also TiHKAL: #26 LSD

Braden, MR. Towards a biophysical basis of hallucinogen action. Ph. D. Thesis, Purdue University, West Lafayette, IN, 2007. pdf 8442 kB.

Analogue 20: Substituting Methyl and 1-Phenylpropan-2-yl for Diethyl at N

N-Methyl-N-(1-phenylpropan-2-yl)lysergamide

Formula: C26H29N3O.

See also TiHKAL: #26 LSD
Analogue 21: Substituting Ethyl and n-Propyl for Diethyl at N

N-Ethyl-N-propyllysergamide

Formula: C21H27N3O.

See also TiHKAL: #26 LSD
Analogue 22: Substituting Di-n-propyl for Diethyl at N

N,N-Dipropyllysergamide

Formula: C22H29N3O.

See also TiHKAL: #26 LSD
Analogue 23: Substituting Diisopropyl for Diethyl at N

N,N-Diisopropyllysergamide

Formula: C22H29N3O.

See also TiHKAL: #26 LSD
Analogue 24: Substituting Diallyl for Diethyl at N

DAL; N,N-Diallyllysergamide

Formula: C22H25N3O. ChemSpider ID: 21106294. Wikipedia: Diallyllysergamide.

See also TiHKAL: #26 LSD
Analogue 25: Substituting Di-n-butyl for Diethyl at N

N,N-Dibutyllysergamide

Formula: C24H33N3O.

See also TiHKAL: #26 LSD
Analogue 26: Substituting Pyrrolidine for Diethyl at N

LPD-824; N-Pyrrolidyllysergamide

Formula: C20H23N3O. PubChem ID: 200628. ChemSpider ID: 173678. Wikipedia: LPD-824.

See also TiHKAL: #26 LSD
Analogue 27: Substituting 2,5-Dihydro-1H-pyrrole for Diethyl at N

N-(2,5-Dihydro-1H-pyrrolyl)lysergamide

Formula: C20H21N3O.

See also TiHKAL: #26 LSD
Analogue 28: Substituting Piperidine for Diethyl at N

N-Piperidinyllysergamide

Formula: C21H25N3O.

See also TiHKAL: #26 LSD

Braden, MR. Towards a biophysical basis of hallucinogen action. Ph. D. Thesis, Purdue University, West Lafayette, IN, 2007. pdf 8442 kB.

Analogue 29: Substituting Morpholine for Diethyl at N

LSM-775; N-Morpholinyllysergamide

Formula: C20H23N3O2. PubChem ID: 199507. ChemSpider ID: 172695. Wikipedia: LSM-775.

See also TiHKAL: #26 LSD
Analogue 30: Substituting 2,4-Dimethylazetidine for Diethyl at N

LA-SS-Az; Lysergic acid 2,4-dimethylazetidide

Formula: C21H25N3O. PubChem ID: 10472143. Wikipedia: Lysergic acid 2,4-dimethylazetidide.

Braden, MR. Towards a biophysical basis of hallucinogen action. Ph. D. Thesis, Purdue University, West Lafayette, IN, 2007. pdf 8442 kB.

Analogue 31: Substituting 1-Hydroxyethyl for Diethyl at N

LSH; Lysergic acid N-(α-hydroxyethyl)amide

Formula: C18H21N3O2. PubChem ID: 134553. ChemSpider ID: 118592. Wikipedia: D-Lysergic acid N-(α-hydroxyethyl)amide.

Seven isomers:
Isomer 1

N-Butyllysergamide

Formula: C20H25N3O. PubChem ID: 3039392. ChemSpider ID: 2302861.

See also TiHKAL: #26 LSD
Isomer 2

N-Butan-2-yllysergamide

Formula: C20H25N3O. Wikipedia: Lysergic acid 2-butyl amide.

See also TiHKAL: #26 LSD
Isomer 3

LMP; N-Methyl-N-propyllysergamide

Formula: C20H25N3O. PubChem ID: 497668.

See also TiHKAL: #26 LSD
Isomer 4

N-Isopropyl-N-methyllysergamide

Formula: C20H25N3O. Wikipedia: Methylisopropyllysergamide.

See also TiHKAL: #26 LSD

Braden, MR. Towards a biophysical basis of hallucinogen action. Ph. D. Thesis, Purdue University, West Lafayette, IN, 2007. pdf 8442 kB.

Isomer 5

l-LSD; l-Lysergic acid diethylamide

Formula: C20H25N3O. PubChem ID: 638252.

See also TiHKAL: #26 LSD
Isomer 6

d-iso-LSD; d-iso-Lysergic acid diethylamide

Formula: C20H25N3O. PubChem ID: 638252. ChemSpider ID: 553804.

See also TiHKAL: #26 LSD
Isomer 7

l-iso-LSD; l-iso-Lysergic acid diethylamide

Formula: C20H25N3O. PubChem ID: 5761.

See also TiHKAL: #26 LSD
Show all 57 analogues and isomers Show only the four skeleton analogues Show only the four R1 analogues Show only the two R2 analogues Show only the nine R6 analogues Show only the 31 N analogues

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