12'-hydroxy-2'-(propan-2-yl)-5'alpha-(2-méthylpropyl)-9,10-dihydro-10alpha-ergotamane-3',6',18-trione [ méthanesulfonate de dihydroergocryptine ]
12'-hydroxy-2'-(propan-2-yl)-5'alpha-(2-methylpropyl)-9,10-dihydro-10alpha-ergotaman-3',6',18-trione [ dihydroergocryptine methanesulfonate ]