InChI=1/C13H14N4O3S/c1-7-3-8(2)5-9(4-7)14-10(18)6-21-12-11(19)15-13(20)17-16-12/h3-5H,6H2,1-2H3,(H,14,18)(H2,15,17,19,20)/p-1/fC13H13N4O3S/h14-15H/q-1 6AB95A2C897887E3