InChI=1/C14H9N5O2/c20-14-9-6-8(10-3-4-15-7-16-10)12(11-2-1-5-21-11)17-13(9)18-19-14/h1-7H,(H2,17,18,19,20)/f/h18-19H 4D2125F2D1F31744