InChI=1/C15H14N4O5S/c1-24-18-14(20)9-2-4-10(5-3-9)19-25(22,23)11-6-7-12-13(8-11)17-15(21)16-12/h2-8,19H,1H3,(H,18,20)(H2,16,17,21)/f/h16-18H D32B0AC5E63D2AB9