InChI=1/C12H16N6O2S/c13-9-4-8(5-10(14)6-9)12-15-16-17-18(12)11-2-1-3-21(19,20)7-11/h4-6,11H,1-3,7,13-14H2/t11-/m1/s1 04794489136BB2CC