InChI=1/C14H15N3O4/c1-9(11-5-3-4-6-13(11)18)16(2)14(19)12-7-10(8-15-12)17(20)21/h3-9H,1-2H3,(H2,15,18,19)/p-1/t9-/m1/s1/fC14H14N3O4/h18H/q-1 2DAE9B47F5B2B45C