InChI=1/C14H11N3O4S/c1-7-4-11(21-17-7)13(18)16-14-15-8-5-9-10(6-12(8)22-14)20-3-2-19-9/h4-6H,2-3H2,1H3,(H,15,16,18)/f/h16H 7D1D675232AC662B