InChI=1/C12H9N3O2S4/c16-9(7-1-3-13-4-2-7)15-14-8-5-18-10-11(19-6-8)21-12(17)20-10/h1-4H,5-6H2,(H,15,16)/f/h15H 6C44A594AE9B17C6