InChI=1/C21H19N5O2/c1-12(2)14-8-9-16-15(10-14)19(21(28)22-16)25-26-20(27)18-11-17(23-24-18)13-6-4-3-5-7-13/h3-12H,1-2H3,(H,23,24)(H,26,27)(H,22,25,28)/p+1/fC21H20N5O2/h22-23,25-26H/q+1 D4E67EB530800206