InChI=1/C18H14FNO4S2/c1-24-18(21)16-10-15(11-4-8-14(9-5-11)26(20,22)23)17(25-16)12-2-6-13(19)7-3-12/h2-10H,1H3,(H2,20,22,23)/f/h20H2 544887722286FF9F