InChI=1/C14H9N5O2/c20-14-17-10-6-8(9-3-4-15-7-16-9)12(18-13(10)19-14)11-2-1-5-21-11/h1-7H,(H2,17,18,19,20)/f/h17,19H 6DD8BEF5F7E1A5E5