InChI=1/C13H9N2O3S2/c16-9-5-7-10(8-6-9)20(17,18)15-13-14-11-3-1-2-4-12(11)19-13/h1-8H,(H-,14,15,16)/q-1/f/h16H 2D226C5E0714E5D3