InChI=1/C16H14N4O6/c1-25-9-5-3-4-8-10(9)11(12(18-8)15(23)26-2)17-6-7-13(21)19-16(24)20-14(7)22/h3-6,17-18H,1-2H3,(H2,19,20,21,22,24)/f/h19-20H 0DA0FA4B8F2B6E13