InChI=1/C18H18N8O/c1-12-6-7-15(26-11-20-23-24-26)8-16(12)22-18(27)19-9-14-10-25-13(2)4-3-5-17(25)21-14/h3-8,10-11H,9H2,1-2H3,(H2,19,22,27)/p+1/fC18H19N8O/h19,21-22H/q+1 858D9E592AF4D14F