(8alpha)-5'alpha-Benzyl-12'-hydroxy-2'-isopropylergotaman-3',6',18-trione 511-07-9 EINECS 208-119-1 Ergocristinine Ergotaman-3',6',18-trione, 12'-hydroxy-2'-(1-methylethyl)-5'-(phenylmethyl)-, (5'alpha,8alpha)- Isoergocristine