139459-45-3 6-Chloro-3-(3-cyclopropyl-1,2,4-oxadiazol-5-yl)-5-methylimidazo(1,5-a)quinoxalin-4(5H)-one Imidazo(1,5-a)quinoxalin-4(5H)-one, 6-chloro-3-(5-cyclopropyl-1,2,4-oxadiazol-3-yl)-5-methyl- U 80447 U-80447