InChI=1/C14H18N4O2S/c1-10(11-4-3-7-17-9-11)18-14-6-5-12(8-13(14)15)21(19,20)16-2/h3-10,16,18H,15H2,1-2H3/t10-/m1/s1 8123B1128F3DD41E