InChI=1/C15H11N5O2S/c1-9-7-11(19-22-9)13(21)17-14-18-20-8-12(16-15(20)23-14)10-5-3-2-4-6-10/h2-8H,1H3,(H,17,18,21)/f/h17H ECE23E4F029215E6