QE051901

酒石酸麦角胺 EP 杂质 A；8-羟基麦角胺

Ergotamine tartrate EP Impurity A;8-Hydroxyergotamine

别名：(6aR,9S)-N-((2R,5S,10aS,10bS)-5-benzyl-10b-hydroxy-2-methyl-3,6-dioxooctahydro-2H-oxazolo[3,2-a]pyrrolo[2,1-c]pyrazin-2-yl)-9-hydroxy-7-methyl-4,6,6a,7,8,9-hexahydroindolo[4,3-fg]quinoline-9-