InChI=1/C15H12N4O5S/c20-12-8-4-2-6-10(12)14(22)17-18-15(25)16-13(21)9-5-1-3-7-11(9)19(23)24/h1-8,20H,(H,17,22)(H2,16,18,21,25)/f/h16-18H 1EEF0E600D4D8CB9