2,2-Diacetoxy-6-cyclopropyl-9-fluoro-10-methyl-8-(3-methylpiperazin-1-yl)-4-oxo-4,6-dihydro-2H-[1,3,2]dioxaborinino[5,4-c]quinolin-1-ium-2-uide is an intermediate in the synthesis of dl-Grepafloxacin (G783000), which is an antibacterial compound used to treat various respirator infections.