InChI=1/C12H10N4O3S2/c1-16-8-3-6-20-11(8)10(17)9(21(16,18)19)7-15-12-13-4-2-5-14-12/h2-7H,1H3,(H,13,14,15)/b9-7-/f/h15H 49B06B5603AA2F37