InChI=1/C17H13N3O4/c21-12-5-6-13(15(22)8-12)17(24)20-18-9-11-7-10-3-1-2-4-14(10)19-16(11)23/h1-9,21-22H,(H,19,23)(H,20,24)/b18-9+/f/h19-20H 3F05EFBEC91ADC6B