InChI=1/C10H9N5O4/c11-9-8(14-19-15-9)10(18)13-12-4-5-1-2-6(16)3-7(5)17/h1-4,16-17H,(H2,11,15)(H,13,18)/b12-4+/f/h13H,11H2 A84210F5DA4AA25E