InChI=1/C21H20N4/c1-25(2)18-11-8-16(9-12-18)10-13-20-19(21(22)24-15-23-20)14-17-6-4-3-5-7-17/h3-9,11-12,15H,14H2,1-2H3,(H2,22,23,24)/f/h22H2 6A1AF60DFA1FA007