InChI=1/C11H13ClN2O5S/c12-8-4-3-7(6-9(8)20(13,18)19)11(17)14-5-1-2-10(15)16/h3-4,6H,1-2,5H2,(H,14,17)(H,15,16)(H2,13,18,19)/p-1/fC11H12ClN2O5S/h14H,13H2/q-1 259AECEF6FD52428