InChI=1/C20H15N7O/c1-26-12-15-17(24-26)22-20(23-19(28)14-10-6-3-7-11-14)27-18(15)21-16(25-27)13-8-4-2-5-9-13/h2-12H,1H3,(H,22,23,24,28)/f/h23H 48E8440243B89E9A