InChI=1/C15H12N4O2/c1-2-8-18-14(20)12-13(17-10-16-12)19(15(18)21)9-11-6-4-3-5-7-11/h1,3-7,10,20H,8-9H2/p-1/fC15H11N4O2/h20h/q-1 B84A27D62FC6B337