InChI=1/C19H13N5O4/c20-18-22-13(23-19(21)24-18)8-28-17(27)12-7-3-6-11-14(12)16(26)10-5-2-1-4-9(10)15(11)25/h1-7H,8H2,(H4,20,21,22,23,24)/f/h20-21H2 4776EFD3D8E52883