1B-LSD

1B-LSD (N1-butyryl-lysergic acid diethylamide) is an acylated derivative of lysergic acid diethylamide (LSD), which has been sold as a designer drug.^[1] In tests on mice it was found to be an active psychedelic, though with only around 1/7 the potency of LSD itself.^[2][3][4]

1B-LSD

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 covered by the Federal Analogue Act if sold for human consumption) UN: Unscheduled
Identifiers
IUPAC name (6aR,9R)-N,N-diethyl-6-methyl-4-butanoyl-4,6,6a,7,8,9-hexahydroindolo[4,3-fg]quinoline-9-carboxamide
CAS Number	2349376-12-9
PubChem CID	145875086
ChemSpider	82827098
UNII	Y6JQX3L6LP
Chemical and physical data
Formula	C24H31N3O2
Molar mass	393.531 g·mol−1
3D model (JSmol)	Interactive image
SMILES CN1[C@](C2=C[C@@H](C(N(CC)CC)=O)C1)([H])CC3=CN(C(CCC)=O)C4=C3C2=CC=C4
InChI InChI=1S/C24H31N3O2/c1-5-9-22(28)27-15-16-13-21-19(18-10-8-11-20(27)23(16)18)12-17(14-25(21)4)24(29)26(6-2)7-3/h8,10-12,15,17,21H,5-7,9,13-14H2,1-4H3/t17-,21-/m1/s1 Key:SVRFNPSJPIDUBC-DYESRHJHSA-N

Legal status

1B-LSD is illegal in Singapore.^[5] Sweden's public health agency suggested classifying 1B-LSD as a hazardous substance, on June 24, 2019.^[6]

See also

• Lysergic acid diethylamide (LSD)
• 1cP-LSD
• 1P-LSD
• 1V-LSD
• ALD-52
• 1cP-AL-LAD
• AL-LAD
• ETH-LAD
• 1P-ETH-LAD
• PRO-LAD
• LSM-775
• LSZ
• O-Acetylpsilocin (4-AcO-DMT)