InChI=1/C16H11N3O3S/c20-15-13(8-10-4-3-7-22-10)23-16(21)19(15)9-14-17-11-5-1-2-6-12(11)18-14/h1-8H,9H2,(H,17,18)/b13-8+/f/h17H 790728EF9EA52B40