InChI=1/C12H18N4O4/c17-2-1-16(5-9(19)6-18)4-8-3-13-11-10(8)14-7-15-12(11)20/h3,7,9,13,17-19H,1-2,4-6H2,(H,14,15,20)/t9-/m1/s1/f/h15H E7E1182B53468F5C