InChI=1/C13H9N3O5/c17-12-9-3-1-7(5-10(9)13(18)15-12)14-6-8-2-4-11(21-8)16(19)20/h1-5,14H,6H2,(H,15,17,18)/f/h15H 8BF6C66D3837A15E