InChI=1/C15H11BrF4N2O3S/c16-10-2-3-11(12(17)7-10)14(23)21-5-6-26(24,25)13-4-1-9(8-22-13)15(18,19)20/h1-4,7-8H,5-6H2,(H,21,23)/f/h21H 7A79B1DFBE2EA5A2