InChI=1/C16H9N3O6/c20-13-12-7-9(4-5-11(12)15(22)18-16(13)23)17-14(21)8-2-1-3-10(6-8)19(24)25/h1-7H,(H,17,21)(H,18,22,23)/f/h17-18H 6D1FF3B97001E5E3