InChI=1S/C17H15N9/c18-8-12-9-22-26-15(12)24-16(23-13-4-2-1-3-5-13)25-17(26)20-7-6-14-10-19-11-21-14/h1-5,9-11H,6-7H2,(H,19,21)(H2,20,23,24,25)