InChI=1/C12H10N6S2/c1-2-8-9(3-1)20-12-10(8)11(13-6-14-12)17-15-4-7-5-19-18-16-7/h4-6H,1-3H2,(H,13,14,17)/b15-4+/f/h17H E18A219C0B3046C4