InChI=1/C19H16N4O/c20-18-17-16(14-6-2-1-3-7-14)10-23(19(17)22-12-21-18)15-8-4-5-13(9-15)11-24/h1-10,12,24H,11H2,(H2,20,21,22)/f/h20H2 A2244EF878F7CE81