InChI=1/C19H14N4O/c20-18(24)15-4-1-5-16-17(15)23-19(22-16)13-8-6-12(7-9-13)14-3-2-10-21-11-14/h1-11H,(H2,20,24)(H,22,23)/f/h22H,20H2 C3F9FEDB7C42F0EE