InChI=1/C17H11N3O3/c21-17-14(12-3-1-2-4-16(12)19-17)7-10-9-18-15-6-5-11(20(22)23)8-13(10)15/h1-9,18H,(H,19,21)/b14-7+/f/h19H 23E84006D7705D36