InChI=1/C15H11N3O2S/c19-12-8-6-11(7-9-12)14(20)17-15-16-13(18-21-15)10-4-2-1-3-5-10/h1-9,19H,(H,16,17,18,20)/f/h17H 16E0E80B77B4BBC6