InChI=1/C14H11ClN2O4S/c1-22-9-3-4-12(17(20)21)10(7-9)14(19)16-11-6-8(15)2-5-13(11)18/h2-7,18H,1H3,(H,16,19)/f/h16H E8479CD4255C0B06