InChI=1/C15H10N3O4S/c16-8-10-3-1-2-4-14(10)23(20,21)18-11-5-6-13-12(7-11)17-15(19)9-22-13/h1-7H,9H2,(H,17,19)/q-1/f/h17H B031E54518C74381