InChI=1S/C12H15F2O6P/c1-6-2-7(9(14)3-8(6)13)11-4-10(15)12(20-11)5-19-21(16,17)18/h2-3,10-12,15H,4-5H2,1H3,(H2,16,17,18)/t10-,11+,12+/m0/s1