3656-32-4 Pyrazino[2,3-g]quinoxaline-2,3,7,8-tetrol (en)pyrazino[2,3-g]quinoxaline-2,3,7,8(1h,4h)-tetrone, 6,9-dihydro- (en) 187865-16-3 SPIRO[4H,8H-[1,4]DIOXEPINO[2,3-G]INDOLE-8,7'(8'H)-[5H,6H-5A,9A](IMINOMETHANO)[1H]CYCLOPENT[F]INDOLIZIN]-10'-ONE, 2',3',8'A,9'-TETRAHYDRO-1'-HYDROXY-1',4,4,8',8',11'-HEXAMETHYL-, (1'R,5'AS,7'R,8'AS,9'AR)- (9CI)