66104-23-2 8-.beta.-[(Methylthio)methyl]-6-propylergoline methanesulfonate Ergoline, 8-[(methylthio)methyl]-6-propyl-, (8.beta.)-, monomethanesulfonate Ergoline, 8.beta.-[(methylthio)methyl]-6-propyl-, methanesulfonate (1:1) MPE NSC319773 Pergolide mesylate