InChI=1/C14H12N4OS/c19-13-10-8-4-1-2-5-9(8)20-14(10)18-12(17-13)11-15-6-3-7-16-11/h3,6-7H,1-2,4-5H2,(H,17,18,19)/f/h17H 2AF6EE9227EDE14D