InChI=1/C11H16N4O4S/c1-8-4-5-14(7-8)20(18,19)11-6-9(13-12)2-3-10(11)15(16)17/h2-3,6,8,13H,4-5,7,12H2,1H3/t8-/m1/s1 6D5D8B6B1F138011