N1-Methyl-lysergic acid diethylamide

N1-Methyl-lysergic acid diethylamide
Clinical data
Routes of
Pharmacokinetic data
Metabolism hepatic
Excretion renal
Synonyms MLD-41, N1- Methyl- Lysergic Acid Diethylamide
CAS Number 4238-85-1 YesY
PubChem (CID) 165200
ChemSpider 144824 YesY
Chemical and physical data
Formula C21H27N3O
Molar mass 337.47 g/mol
3D model (Jmol) Interactive image

N1-Methyl-lysergic acid diethylamide (MLD-41) is a derivative of LSD.

Metabolism of other 1-methylated-ergoloids to their secondary amine derivatives has been frequently noted in mammals.[1]


  1. Müller-Schweinitzer and Tapparelli (1986). Methylergometrine, an active metabolite of methysergide. Cephalalgia. 6: 35-41.

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