InChI=1/C14H13ClN2O4S/c15-10-3-1-9(2-4-10)13-7-12(17-21-13)14(18)16-11-5-6-22(19,20)8-11/h1-4,7,11H,5-6,8H2,(H,16,18)/t11-/m0/s1/f/h16H 3608968673CACCC4