InChI=1/C13H15N3O4/c1-3-5-16-10-9(11(17)15-13(16)20)8(12(18)19)6-7(4-2)14-10/h6H,3-5H2,1-2H3,(H,18,19)(H,15,17,20)/p-1/fC13H14N3O4/h15H/q-1 CEAEFA8D142FB3CA