InChI=1/C17H13F3NO4S/c18-11-4-6-14(16(20)15(11)19)26(22,23)21-10-3-5-12-13(9-10)25-17(24-12)7-1-2-8-17/h3-6,9H,1-2,7-8H2/q-1 ECA2742BB2094FC3