InChI=1/C18H18N8O/c1-11-14(16(27)26(24-11)13-7-5-4-6-8-13)9-12(10-19)15-21-17(20)23-18(22-15)25(2)3/h4-9,27H,1-3H3,(H2,20,21,22,23)/b12-9+/f/h20H2 68D77EC3DF5FC01A