InChI=1S/C14H10F5N3O4S/c1-26-7-3-2-5(4-6(7)21-14(20)23)22-27(24,25)13-11(18)9(16)8(15)10(17)12(13)19/h2-4,22H,1H3,(H3,20,21,23)