InChI=1S/C15H11ClFNO8S/c16-10-5-9(26-27(23,24)25)6-11(17)14(10)18-12-2-1-7(15(21)22)3-8(12)4-13(19)20/h1-3,5-6,18H,4H2,(H,19,20)(H,21,22)(H,23,24,25)