Azoglutethimide;AMINOGLUTETHIMIDE IMPURITY D;3,3′-(Azodi-4,1-phenylene)bis[3-ethyl-2,6-piperidinedione];2,6-Piperidinedione, 3,3'-(azodi-4,1-phenylene)bis[3-ethyl- (9CI);3,3′-[Diazenediylbis(4,1-phenylene)]bis(3-ethylpiperidine-2,6-dione);d . 3,3′-[d i a ze ne d i ylb i s(4,1-ph e nyle ne )]b i s(3-e th ylpi pe ri d i ne -2,6-d i one ) (a zog lute th i mi d e ).