InChI=1/C13H9N3O4S/c1-6-2-8(16-20-6)12(17)15-13-14-7-3-9-10(19-5-18-9)4-11(7)21-13/h2-4H,5H2,1H3,(H,14,15,17)/f/h15H 40416D491A778D86