InChI=1/C15H12FN2O4S/c16-12-4-2-1-3-10(12)7-8-23(20,21)18-11-5-6-13-14(9-11)22-15(19)17-13/h1-6,9H,7-8H2,(H,17,19)/q-1/f/h17H BE011AB5556F11A6