InChI=1/C18H14ClN2O5S/c1-20(17-3-2-12-21(23)18(17)22)27(24,25)16-10-8-15(9-11-16)26-14-6-4-13(19)5-7-14/h2-12H,1H3/q-1 ED7CB3E917F18240