InChI=1/C14H12N4O2S/c1-8(19)15-14-17-11(10-6-4-3-5-7-10)12(21-14)13-16-9(2)20-18-13/h3-7H,1-2H3,(H,15,17,19)/f/h15H AD5DB897C59EC3E2