InChI=1/C13H18N8/c1-3-4-5-6-9-17-11(14)10-12(18-9)20(2)13(19-10)21-15-7-8-16-21/h7-8H,3-6H2,1-2H3,(H2,14,17,18)/f/h14H2 25888F33FF9FD158