InChI=1/C12H18N4O/c1-8-5-3-4-6-10(8)15-16-12-13-9(2)7-11(17)14-12/h7-8H,3-6H2,1-2H3,(H2,13,14,16,17)/b15-10+/t8-/m1/s1/f/h14,16H 839B37E5B20AF883