InChI=1/C13H16N4O4S/c1-20-10-4-3-8(6-11(10)21-22(2,18)19)5-9-7-16-13(15)17-12(9)14/h3-4,6-7H,5H2,1-2H3,(H4,14,15,16,17)/f/h14-15H2 A2CE1DA2468453B2