InChI=1/C14H14N4O2S/c1-2-3-5-20-12-9(11(19)14-15-4-6-21-14)7-16-13-10(12)8-17-18-13/h4,6-8H,2-3,5H2,1H3,(H,16,17,18)/f/h18H 79249C23C238E214