InChI=1/C14H18N4O2S/c15-9-1-4-11-12(7-9)21-14(16-11)17-13(20)8-18(5-6-19)10-2-3-10/h1,4,7,10,19H,2-3,5-6,8,15H2,(H,16,17,20)/p+1/fC14H19N4O2S/h17-18H/q+1 3F08680293BC1FED