InChI=1/C18H15N3O4/c22-14-11-18(16(24)19-14)17(25)20(10-8-12-5-2-1-3-6-12)15(23)13-7-4-9-21(13)18/h1-7,9H,8,10-11H2,(H,19,22,24)/p-1/t18-/m1/s1/fC18H14N3O4/q-1 7C06EFC50B7AA840