Ergocornine (also known as Ergocornin, 12'-Hydroxy-2',5'-α-bis(1-methylethyl)ergotaman-3',6',18-trione, 4-25-00-00963, 12'-hydroxy-2',5'α-bis(1-methylethyl)ergotaman-3',6',18-trione, 12'-hydroxy-3',6',18-trioxo-2',5'α-di(propan-2-yl)ergotaman, Ergotaman-3',6',18-trione, 12'-hydroxy-2',5'-bis(1-methylethyl)-, (5'-α)-, Ergocorninin, Ergocorine phosphate, (5'α)-12'-Hydroxy-2',5'-bis(1-methylethyl)ergotaman-3',6',18-trione or Ergotaman-3',6',18-trione, 12'-hydroxy-2',5'-bis(1-methylethyl)-, (5'α)-) is a substance of the lysergamide class.