InChI=1/C14H12N4OS/c1-8-3-4-11-12(14(19)18-9(2)17-11)13(8)20-10-5-6-15-16-7-10/h3-7H,1-2H3,(H,17,18,19)/f/h18H 8A7EFC6A26BB9FA3