InChI=1/C18H19N5O4/c1-3-25-13-6-10(4-5-12(13)26-8-14(20)24)16-11(7-19)17(21)27-18-15(16)9(2)22-23-18/h4-6,16H,3,8,21H2,1-2H3,(H2,20,24)(H,22,23)/t16-/m1/s1/f/h23H,20H2 A2B98F80A3DFECC4