1-Methyllysergic acid diethylamide

1-甲基麦角酸二乙酰胺

Also known as: 1-Methyllysergic acid diethylamide, MLD-41, (8β)-N,N-Diethyl-1,6-dimethyl-9,10-didehydroergoline-8-carboxamide, N1-Methyl-lysergic acid diethylamide, N(1)-Methyl-2-lysergic acid diethylamide, (6aR,9R)-N,N-diethyl-4,7-dimethyl-6,6a,8,9-tetrahydroindolo[4,3-fg]quinoline-9-carboxamide, 9,10-Didehydro-N,N-diethyl-1,6-dimethylergoline-8β-carboxamide, N,N-Diethyl-1,6-dimethylergolin-9-ene-8β-carboxamide

1-Methyllysergic acid diethylamide (CAS 4238-85-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C21H27N3O and a molecular weight of 337.45900 g/mol. It is also known as MLD-41, (8β)-N,N-Diethyl-1,6-dimethyl-9,10-didehydroergoline-8-carboxamide and N1-Methyl-lysergic acid diethylamide. Key properties include a boiling point of 542.5°C at 760 mmHg, a density of 1.19g/cm3 and a flash point of 281.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

4238-85-1

Jingsj CID

J-1085986-7

Molecular Formula

C₂₁H₂₇N₃O

Chinese Name

1-甲基麦角酸二乙酰胺

Molecular Weight

337.45900 g/mol

Category

Organic Acids

Last updated

8/21/2026