InChI=1/C13H11N3O4S/c14-8-1-3-9(4-2-8)16-21(18,19)10-5-6-11-12(7-10)20-13(17)15-11/h1-7,16H,14H2,(H,15,17)/f/h15H 0F4114AB88B2F74D