InChI=1S/C18H17N7/c1-5-15(24-17-19-9-10-20-17)6-2-13(1)23-14-3-7-16(8-4-14)25-18-21-11-12-22-18/h1-12,23H,(H2,19,20,24)(H2,21,22,25)