InChI=1/C16H10N4O/c17-16-19-13(9-5-7-18-8-6-9)12-14(20-16)10-3-1-2-4-11(10)15(12)21/h1-8H,(H2,17,19,20)/f/h17H2 0A7B6440A4EEC15B