1-Methyl-D-lysergic acid butanolamide dimaleate 29605-96-7 Deseril-retard Desernil bismaleate Ergoline-8-carboxamide, 9,10-didehydro-N-[1-(hydroxymethyl)propyl]-1,6-dimethyl-, (8.beta.)-, (Z)-2-butenedioate (1:2) (salt) Ergoline-8.beta.-carboxamide, 9,10-didehydro-N-[1-(hydroxymethyl)propyl]-1,6-dimethyl-, maleate (1:2) (salt) Methysergide hydrogen bimaleate NSC186061