InChI=1/C14H11ClN2O5S/c1-21-12-6-5-8(7-9(12)15)23(19,20)17-11-4-2-3-10-13(11)22-14(18)16-10/h2-7,17H,1H3,(H,16,18)/f/h16H 6EB4FB921C40569D