InChI=1/C16H14N8O2/c17-21-15-19-12-8-4-2-6-10(12)14(26)24(15)22-16-20-11-7-3-1-5-9(11)13(25)23(16)18/h1-8H,17-18H2,(H,19,21)(H,20,22)/f/h21-22H 4155224D7FC50BA2