InChI=1/C12H16N2O5S/c15-12-7-6-10(8-11(12)14(16)17)20(18,19)13-9-4-2-1-3-5-9/h6-9,13,15H,1-5H2/p-1/fC12H15N2O5S/h15h/q-1 B93E9491E2D4EA46