InChI=1/C18H14N6O4/c1-23-14-12(15(25)22-18(23)28)6-7-13(21-14)16(26)20-10-2-4-11(5-3-10)24-9-8-19-17(24)27/h2-9H,1H3,(H,19,27)(H,20,26)(H,22,25,28)/f/h19-20,22H 711CDB7D18241194