InChI=1/C12H17N3O4S/c13-9-1-3-10(4-2-9)14-20(18,19)12-7-5-11(6-8-12)15(16)17/h5-10,14H,1-4,13H2/p+1/fC12H18N3O4S/h13H/q+1 914DD39B9785452A