InChI=1/C18H15FO3S/c1-21-15-7-6-11(9-16(15)22-2)8-12-10-23-18-13(17(12)20)4-3-5-14(18)19/h3-9H,10H2,1-2H3/b12-8+ 3F6684B5EBD73461