InChI=1/C13H9F2O6P/c14-8-2-3-9(11(15)6-8)7-1-4-12(21-22(18,19)20)10(5-7)13(16)17/h1-6H,(H,16,17)(H2,18,19,20)/p-3/fC13H6F2O6P/q-3 E1E9F73220A6FA13