InChI=1/C15H12N4O5/c20-13(10-5-4-8-12(9-10)19(23)24)17-18-15(22)14(21)16-11-6-2-1-3-7-11/h1-9H,(H,16,21)(H,17,20)(H,18,22)/f/h16-18H 3FB247CE8E34DAAF