InChI=1/C15H10N4O4S/c20-12(6-19-7-16-13-9(14(19)21)3-4-24-13)17-8-1-2-11-10(5-8)18-15(22)23-11/h1-5,7H,6H2,(H,17,20)(H,18,22)/f/h17-18H 48F51AB9CFEEB9CE