12'-Hydroxy-2',5'alpha-diisopropylergotaman-3',6',18-trione methanesulphonate 2207-69-4 EINECS 218-625-4 Ergocornine mesylate Ergocornine methanesulfonate (salt) Ergocornine methanesulphonate Ergotaman-3',6',18-trione, 12'-hydroxy-2',5'-bis(1-methylethyl)-, (5'-alpha)-, methanesulfonate (salt)